diff --git a/GrossesMitaines/GrossesMitainesAPI/Controllers/InvoiceController.cs b/GrossesMitaines/GrossesMitainesAPI/Controllers/InvoiceController.cs
index 39152b0..e35881a 100644
--- a/GrossesMitaines/GrossesMitainesAPI/Controllers/InvoiceController.cs
+++ b/GrossesMitaines/GrossesMitainesAPI/Controllers/InvoiceController.cs
@@ -103,8 +103,8 @@ public class InvoiceController : Controller {
     }
 
     [HttpPost, AllowAnonymous]
-    public async Task<ActionResult<InvoiceModel>> Post(SendInvoiceModel sinv) {
-        var user = await _userMan.GetUserAsync(_signInMan.Context.User);
+    public ActionResult<InvoiceModel> Post(SendInvoiceModel sinv) {
+        var user = _userMan.GetUserAsync(_signInMan.Context.User);
         var prodcom = sinv.ProdQuant;
         Dictionary<int, uint> badprods = new();
         List<ProductModel> prods;
@@ -116,9 +116,10 @@ public class InvoiceController : Controller {
             PurchaseDate = DateTime.Now
         };
         AddressModel ad;
+        user.Wait();
 
-        if (user is not null) {
-            inv.LinkedAccount = user;
+        if (user.Result is not null) {
+            inv.LinkedAccount = user.Result;
             ad = _context.Addresses.FirstOrDefault(x => x.CivicNumber == sinv.CivicNumber &&
                                                         x.Appartment == sinv.Appartment &&
                                                         x.Street == sinv.Street &&
@@ -175,7 +176,8 @@ public class InvoiceController : Controller {
             return BadRequest(badprods.ToArray());
 
         try { // Faire les updates dans la BD.
-            _context.Addresses.Add(ad);
+            if (ad.Id == 0)
+                _context.Addresses.Add(ad);
             _context.Invoices.Add(inv);
             _context.Products.UpdateRange(prods);
             _context.SaveChanges();