diff --git a/app/Http/Controllers/InvoiceController.php b/app/Http/Controllers/InvoiceController.php
index c56f38ff..8da96f12 100644
--- a/app/Http/Controllers/InvoiceController.php
+++ b/app/Http/Controllers/InvoiceController.php
@@ -216,9 +216,9 @@ class InvoiceController extends Controller
         $total = array_reduce($subtotalArray, function ($v1, $v2) {
             return $v1 + $v2;
         });
-        if ($total != $booking->amount) {
+        if ($total != $booking->bia) {
             return response()->json([
-                'message' => 'Booking amount expected is '.$booking->amount.'. Your Invoice amount is '.$total
+                'message' => 'Booking amount expected is '.$booking->bia.'. Your Invoice amount is '.$total
             ], 400);
         }
 
diff --git a/database/migrations/2020_09_25_154412_add_service_charge_to_bookings.php b/database/migrations/2020_09_25_154412_add_service_charge_to_bookings.php
new file mode 100644
index 00000000..114601b7
--- /dev/null
+++ b/database/migrations/2020_09_25_154412_add_service_charge_to_bookings.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddServiceChargeToBookings extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('bookings', function (Blueprint $table) {
+            $table->double('service_charge')->default(null)->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('bookings', function (Blueprint $table) {
+            $table->dropColumn('service_charge');
+        });
+    }
+}