Banting Strips at Houghton Sandwich Baron

When asking for a Banting meal like Banting chicken strips, and a COKE ZERO, I even wrote a note "if no Coke Zero any other drink with no sugar" one would assume the server, Sambulo D at the Houghton branch would understand that the customer has asked for a Banting meal for a reason, because hes on diet or because hes diabetic, however three times now I have made an Order through Uber Eats and what arrives is Banting Chicken strips and a Coke Original. I dont know why this store can not get this simple task right, its very frustrating.