diff --git a/app/service/cartsService/cartsService.go b/app/service/cartsService/cartsService.go
index c82e7b2..235c412 100644
--- a/app/service/cartsService/cartsService.go
+++ b/app/service/cartsService/cartsService.go
@@ -35,11 +35,11 @@ func (s *CartsService) CreateNewCart(user_id uint) (model.CustomerCart, error) {
 }
 
 func (s *CartsService) UpdateCartName(user_id uint, cart_id uint, new_name string) error {
-	amt, err := s.repo.UserHasCart(user_id, cart_id)
+	exists, err := s.repo.UserHasCart(user_id, cart_id)
 	if err != nil {
 		return err
 	}
-	if amt != 1 {
+	if !exists {
 		return responseErrors.ErrUserHasNoSuchCart
 	}
 
@@ -51,11 +51,11 @@ func (s *CartsService) RetrieveCartsInfo(user_id uint) ([]model.CustomerCart, er
 }
 
 func (s *CartsService) RetrieveCart(user_id uint, cart_id uint) (*model.CustomerCart, error) {
-	amt, err := s.repo.UserHasCart(user_id, cart_id)
+	exists, err := s.repo.UserHasCart(user_id, cart_id)
 	if err != nil {
 		return nil, err
 	}
-	if amt != 1 {
+	if !exists {
 		return nil, responseErrors.ErrUserHasNoSuchCart
 	}
 
@@ -63,19 +63,19 @@ func (s *CartsService) RetrieveCart(user_id uint, cart_id uint) (*model.Customer
 }
 
 func (s *CartsService) AddProduct(user_id uint, cart_id uint, product_id uint, product_attribute_id *uint, amount uint) error {
-	amt, err := s.repo.UserHasCart(user_id, cart_id)
+	exists, err := s.repo.UserHasCart(user_id, cart_id)
 	if err != nil {
 		return err
 	}
-	if amt != 1 {
+	if !exists {
 		return responseErrors.ErrUserHasNoSuchCart
 	}
 
-	amt, err = s.repo.CheckProductExists(product_id, product_attribute_id)
+	exists, err = s.repo.CheckProductExists(product_id, product_attribute_id)
 	if err != nil {
 		return err
 	}
-	if amt != 1 {
+	if !exists {
 		return responseErrors.ErrProductOrItsVariationDoesNotExist
 	}