diff --git a/app/Http/Controllers/HealthCareSheetController.php b/app/Http/Controllers/HealthCareSheetController.php
index fb01c85..728632e 100755
--- a/app/Http/Controllers/HealthCareSheetController.php
+++ b/app/Http/Controllers/HealthCareSheetController.php
@@ -1035,17 +1035,16 @@ class HealthCareSheetController extends Controller
                             DB::rollback();
                             return $this->errorResponse(__('errors.prescription_already_invoiced', ['id' => $itemIndex + 1]));
                         }
-                        if (isset($prescriptions[$itemIndex]['quantity'])) {
-                            $quantity_to_bill = $item->quantity - ($item->billed_quantity ?? 0);
-                            if ($prescriptions[$itemIndex]['quantity'] > $quantity_to_bill) {
-                                DB::rollback();
-                                return $this->errorResponse(__('errors.prescription_ordered_quantity_must_not_greater_than_ordered_quantity',
-                                    ['id' => $itemIndex + 1, 'quantity' => $quantity_to_bill]));
-                            }
-
-                            $item->quantity = $prescriptions[$itemIndex]['quantity'];
-                            $i->billed_quantity += $item->quantity;
+                        $quantity = $prescriptions[$itemIndex]['quantity'] ?? $item->quantity;
+                        $quantity_to_bill = $item->quantity - ($item->billed_quantity ?? 0);
+                        if ($quantity > $quantity_to_bill) {
+                            DB::rollback();
+                            return $this->errorResponse(__('errors.prescription_ordered_quantity_must_not_greater_than_ordered_quantity',
+                                ['id' => $itemIndex + 1, 'quantity' => $quantity_to_bill]));
                         }
+                        $item->quantity = $quantity;
+                        $i->billed_quantity += $item->quantity;
+
                         $item->unit_price = $prescriptions[$itemIndex]['unit_price'];
                         $item->billed_quantity = null;
                     }
diff --git a/resources/lang/en/states.php b/resources/lang/en/states.php
index fbe939a..e8215e8 100755
--- a/resources/lang/en/states.php
+++ b/resources/lang/en/states.php
@@ -35,5 +35,6 @@ return [
     "ONE_TIME" => "ONCE",
     "DAILY" => "DAY",
     "MONTHLY" => "MONTH",
-    "MODIFIED" => "MODIFIED"
+    "MODIFIED" => "MODIFIED",
+    'RENEWAL' => 'RENEWAL'
 ];
diff --git a/resources/lang/fr/states.php b/resources/lang/fr/states.php
index 2f54405..dc74a4a 100755
--- a/resources/lang/fr/states.php
+++ b/resources/lang/fr/states.php
@@ -35,5 +35,6 @@ return [
     "ONE_TIME" => "1 FOIS",
     "DAILY" => "JOUR",
     "MONTHLY" => "MOIS",
-    "MODIFIED" => "MODIFIÉE"
+    "MODIFIED" => "MODIFIÉE",
+    'RENEWAL' => 'RENOUVELLEMENT'
 ];