mcdonalds bluehills short orders

Hi for the second time Mcdonals Bluehills delivered food to us and we where short 1 burger . the delivery took place through Mr delivery and the 1st time Mr D gave us a voucher . the 2nd time the driver explained to me that they get the food sealed by Mcdonalds . it is very aggravating that they don't check at least twice before sealing the food up now the family is not satisfied because the food is short and we need to share what they delivered