Customer service

This company as a whole has bad customer service. I bought a milk tart in their store at The Marc Sandton and i couldn’t even eat it, it was as hard as a rock . I complained on twitter and i received a response that they will get back to me. i provided my info as requested but never did i get any communication until today. Pick’n’Pay sells **** food esp cooked or baked and they don’t own up to their mistakes . Never will i but anything from that store ever. I am angry its been months now .