Came back to check if problem of ordering medium meal and asking for large drink was resolved. To my surprise after complaining 2 times I was still refused the large drink with my medium meal. I had to show the shift manager an email the store owner sent me so I could get my drink large. I also followed up with the store manager by phone to inform him of this problem. Hopefully next time this problem will be resolved. On the plus side the restaurant is cleaner.