check receiver after txn_type

src/Billing/Controllers/PayPalController.cs

@@ -193,12 +193,6 @@ namespace Bit.Billing.Controllers
             }
 
             var ipnTransaction = new PayPalIpnClient.IpnTransaction(body);
-            if(ipnTransaction.ReceiverId != _billingSettings.PayPal.BusinessId)
-            {
-                _logger.LogWarning("Receiver was not proper business id. " + ipnTransaction.ReceiverId);
-                return new BadRequestResult();
-            }
-
             if(ipnTransaction.TxnType != "web_accept" && ipnTransaction.TxnType != "merch_pmt" &&
                 ipnTransaction.PaymentStatus != "Refunded")
             {
@@ -206,6 +200,12 @@ namespace Bit.Billing.Controllers
                 return new OkResult();
             }
 
+            if(ipnTransaction.ReceiverId != _billingSettings.PayPal.BusinessId)
+            {
+                _logger.LogWarning("Receiver was not proper business id. " + ipnTransaction.ReceiverId);
+                return new BadRequestResult();
+            }
+
             if(ipnTransaction.PaymentType == "echeck")
             {
                 // Not accepting eChecks