diff --git a/CebelcaAPISharp.cs b/CebelcaAPISharp.cs
index 698836a..412cc96 100644
--- a/CebelcaAPISharp.cs
+++ b/CebelcaAPISharp.cs
@@ -10,79 +10,84 @@ using System.Threading.Tasks;
 
 namespace CebelcaAPI
 {
-    public class CebelcaPartner
+  public class CebelcaPartner
+  {
+    public string Id { get; set; }
+    public string Name { get; set; }
+  }
+  public class CebelcaAPISharp
+  {
+    private string _key = "";
+    public CebelcaAPISharp(string key)
     {
-        public string Id { get; set; }
-        public string Name { get; set; }
+      _key = key;
     }
-    public class CebelcaAPISharp
+    private async Task<string> APICall(string region, string method, Dictionary<string, string> postvalues)
     {
-        private string _key = "";
-        public CebelcaAPISharp(string key)
-        {
-            _key = key;
-        }
-        private async Task<string> APICall(string region, string method, Dictionary<string, string> postvalues)
-        {
-            using (var client = new HttpClient())
-            {
-                var byteArray = Encoding.ASCII.GetBytes($"{_key}:x");
-                client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
-                //  var url = "https://www.cebelca.biz/API?_r=invoice-sent&_m=insert-into";
-                var url = $"https://www.cebelca.biz/API?_r={region}&_m={method}";
-                var content = new FormUrlEncodedContent(postvalues);
-                var response = await client.PostAsync(url, content);
+      using (var client = new HttpClient())
+      {
+        var byteArray = Encoding.ASCII.GetBytes($"{_key}:x");
+        client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
+        //  var url = "https://www.cebelca.biz/API?_r=invoice-sent&_m=insert-into";
+        var url = $"https://www.cebelca.biz/API?_r={region}&_m={method}";
+        var content = new FormUrlEncodedContent(postvalues);
+        var response = await client.PostAsync(url, content);
 
-                var responseString = await response.Content.ReadAsStringAsync();
-                return responseString;
+        var responseString = await response.Content.ReadAsStringAsync();
+        return responseString;
 
-            }
-        }
+      }
+    }
 
-        public async Task<string> AddInvoiceHead(string partnerId, string idDocumentExt, DateTime dateSent, DateTime dateServed, DateTime dateToPay)
-        {
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
-            var values = new Dictionary<string, string>
+    public async Task<string> AddInvoiceHead(string partnerId, string idDocumentExt, DateTime dateSent, DateTime dateServed, DateTime dateToPay, bool paid = false)
+    {
+      Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+      var values = new Dictionary<string, string>
             {
                 { "date_sent",dateSent.ToShortDateString() },
                 { "date_served",dateServed.ToShortDateString() },
-                { "date_to_pay",dateToPay.ToShortDateString() },
+                { "date_to_pay", dateToPay.ToShortDateString()  },
                 { "id_partner", partnerId },
                 { "id_document_ext", idDocumentExt }
             };
-            var ret = await APICall("invoice-sent", "insert-smart-2", values);
-            var json = JArray.Parse(ret);
-            var retname = (json[0][0] as JObject).Properties().First().Name;
-            if (retname != "id")
-                throw new Exception("Error from api: "+ret);
-            var id = json[0][0]["id"].Value<string>();
-            return id;
+      if (paid)
+      {
+        values.Add("payment", "paid");
+        values.Add("payment_act", "1");
+      }
+      var ret = await APICall("invoice-sent", "insert-smart-2", values);
+      var json = JArray.Parse(ret);
+      var retname = (json[0][0] as JObject).Properties().First().Name;
+      if (retname != "id")
+        throw new Exception("Error from api: " + ret);
+      var id = json[0][0]["id"].Value<string>();
+      return id;
 
-        }
+    }
 
-        public async Task<IEnumerable<CebelcaPartner>> GetPartners()
-        {
-            var values = new Dictionary<string, string>();
-            var ret = await APICall("partner", "select-all", values);
-            
-            var json = JArray.Parse(ret);
-            var retname = (json[0][0] as JObject).Properties().First().Name;
-            if (retname != "id")
-                throw new Exception("Error from api: " + ret);
-            var id = json[0][0]["id"].Value<string>();
-            //var l = new List<CebelcaPartner>();
-            var l = json[0].Select(x => new CebelcaPartner
-            {
-                Id = x["id"].Value<string>(),
-                Name = x["name"].Value<string>()
-            }).ToList();
-            return l;
-        }
+    public async Task<IEnumerable<CebelcaPartner>> GetPartners()
+    {
+      var values = new Dictionary<string, string>();
+      var ret = await APICall("partner", "select-all", values);
 
-        public async Task SendInvoiceByEmail(string invoiceId, string to, string subject, string content)
-        {
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
-            var values = new Dictionary<string, string>
+      var json = JArray.Parse(ret);
+      var retname = (json[0][0] as JObject).Properties().First().Name;
+      if (retname != "id")
+        throw new Exception("Error from api: " + ret);
+      var id = json[0][0]["id"].Value<string>();
+      //var l = new List<CebelcaPartner>();
+      var l = json[0].Select(x => new CebelcaPartner
+      {
+        Id = x["id"].Value<string>(),
+        Name = x["name"].Value<string>()
+      }).ToList();
+      return l;
+    }
+
+    public async Task SendInvoiceByEmail(string invoiceId, string to, string subject, string content)
+    {
+      Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+      var values = new Dictionary<string, string>
             {
                 { "id_invoice_sent", invoiceId},
                 { "mto", to},
@@ -93,16 +98,16 @@ namespace CebelcaAPI
                 { "content", content},
                 { "format", "pdf"}
             };
-            var ret = await APICall("mailer", "push-invoice-sent-doc", values);
- 
-        }
+      var ret = await APICall("mailer", "push-invoice-sent-doc", values);
+
+    }
 
 
 
-        public async Task<string> AddInvoiceLine(string invoiceId,string title, string measuringUnit, string qty, decimal price, string vat, string discount)
-        {
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
-            var values = new Dictionary<string, string>
+    public async Task<string> AddInvoiceLine(string invoiceId, string title, string measuringUnit, string qty, decimal price, string vat, string discount)
+    {
+      Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+      var values = new Dictionary<string, string>
             {
                 { "title",title },
                 { "mu",measuringUnit },
@@ -111,62 +116,62 @@ namespace CebelcaAPI
                 { "price", price.ToString() },
                 { "vat", vat }
             };
-            var ret = await APICall("invoice-sent-b", "insert-into", values);
-            var json = JArray.Parse(ret);
-            var retname = (json[0][0] as JObject).Properties().First().Name;
-            if (retname != "id")
-                throw new Exception("Error from api: " + ret);
-            var id = json[0][0]["id"].Value<string>();
-            return id;
+      var ret = await APICall("invoice-sent-b", "insert-into", values);
+      var json = JArray.Parse(ret);
+      var retname = (json[0][0] as JObject).Properties().First().Name;
+      if (retname != "id")
+        throw new Exception("Error from api: " + ret);
+      var id = json[0][0]["id"].Value<string>();
+      return id;
 
-        }
+    }
 
-        public async Task<string> AddPayment(string invoiceId, DateTime dateOfPayment, decimal amount, string paymentMethod )
-        {
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
-            var values = new Dictionary<string, string>
+    public async Task<string> AddPayment(string invoiceId, DateTime dateOfPayment, decimal amount, string paymentMethod)
+    {
+      Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+      var values = new Dictionary<string, string>
             {
                 { "date_of",dateOfPayment.ToShortDateString() },
                 { "amount",amount.ToString() },
-               
+
                 { "id_invoice_sent", invoiceId },
                 { "id_payment_method", paymentMethod},
-                
+
             };
-            var ret = await APICall("invoice-sent-p", "insert-into", values);
-            var json = JArray.Parse(ret);
-            var retname = (json[0][0] as JObject).Properties().First().Name;
-            if (retname != "id")
-                throw new Exception("Error from api: " + ret);
-            var id = json[0][0]["id"].Value<string>();
-            return id;
+      var ret = await APICall("invoice-sent-p", "insert-into", values);
+      var json = JArray.Parse(ret);
+      var retname = (json[0][0] as JObject).Properties().First().Name;
+      if (retname != "id")
+        throw new Exception("Error from api: " + ret);
+      var id = json[0][0]["id"].Value<string>();
+      return id;
 
-        }
+    }
 
-        public async Task<string> IssueInvoiceNoFiscalization(string invoiceId, string docType="0")
-        {
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
-            var values = new Dictionary<string, string>
+    public async Task<string> IssueInvoiceNoFiscalization(string invoiceId, string docType = "0")
+    {
+      Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+      var values = new Dictionary<string, string>
             {
-               
+
                 { "id", invoiceId },
                 { "doctype", docType},
 
             };
-            var ret = await APICall("invoice-sent", "finalize-invoice-2015", values);
-            var json = JArray.Parse(ret);
-            var retname = (json[0][0] as JObject).Properties().First().Name;
-            if (retname != "new_title")
-                throw new Exception("Error from api: " + ret);
-            var id = json[0][0]["new_title"].Value<string>();
-            return id;
+      var ret = await APICall("invoice-sent", "finalize-invoice-2015", values);
+      var json = JArray.Parse(ret);
+      var retname = (json[0][0] as JObject).Properties().First().Name;
+      if (retname != "new_title")
+        throw new Exception("Error from api: " + ret);
+      var id = json[0][0]["new_title"].Value<string>();
+      return id;
 
-        }
+    }
 
-        public async Task<string> IssueInvoiceFiscalization(string invoiceId, string idLocation, string opTaxId, string opName,  bool test_mode = false )
-        {
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
-            var values = new Dictionary<string, string>
+    public async Task<string> IssueInvoiceFiscalization(string invoiceId, string idLocation, string opTaxId, string opName, bool test_mode = false)
+    {
+      Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+      var values = new Dictionary<string, string>
             {
 
                 { "id", invoiceId },
@@ -177,16 +182,16 @@ namespace CebelcaAPI
                 { "test_mode", test_mode ? "1" : "0" },
 
             };
-            var ret = await APICall("invoice-sent", "finalize-invoice", values);
-            var json = JArray.Parse(ret);
-            var retname = (json[0][0] as JObject).Properties().First().Name;
-            if (retname != "docnum")
-                throw new Exception("Error from api: " + ret);
-            var id = json[0][0]["docnum"].Value<string>();
-            var eor = json[0][0]["eor"].Value<string>();
-            return id;
-
-        }
+      var ret = await APICall("invoice-sent", "finalize-invoice", values);
+      var json = JArray.Parse(ret);
+      var retname = (json[0][0] as JObject).Properties().First().Name;
+      if (retname != "docnum")
+        throw new Exception("Error from api: " + ret);
+      var id = json[0][0]["docnum"].Value<string>();
+      var eor = json[0][0]["eor"].Value<string>();
+      return id;
 
     }
+
+  }
 }