Chewing gum/bubble gum/watever u call it

So today i bought hot wings meal8 from chicken licken in Braamfontein, it was a take out. When i opened my food on top of the coleslaw salad there is a chewed bubble gum. Couldnt believe my eyes showed my collegue then she was like go get your money and we never gonna buy food from there. When i got there i ask this other waitress where the manager is and she said hes so busy shes not sure i will be able to see him, and yes it was busy indeed. I told her why i needed to see the manager she just laughed with these two guys she was standing with, when they were done i asked what was funny abt the whole thing then she called the manager i think his name is Prince. I explained he opened it and took it away brought back the food with the same cold wings so seems like he exchanged the salad. Not even an apology from him, then i asked him is that it hes not even gonna apologise and anything then he told me as i can see its very hectic he can take my number and call me later. IM SO DISSAPOINTED, he hasnt called as im typing this. This happened during lunch time