Worst store ever

Never ever will I go to McDonald's corner long and strand street. Ordered double cheese burger but got spicy Cajun and a cooldrink with no gas. I got a cooldrink that was ordered by someone else sometime before I came and they just decided that they will give it to the next person wanting coke and unfortunately I was that person my receipt 3353 clearly said double cheese medium meal. Please train your staff to give the right order to the right people she didn't even check my invoice like she knew the cooldrink was someone else's and also the difference between chicken and beef. I am suppose to trust you guys with my order I don't need to double check it. Worst lunch ever and this is the second time to go in there ad get this wow and you guys recently opened