Moulded burger bun

Today at about 1.10pm i went to Mcdonalds in Bluff and bought a big mac, junior chicken burger and junior cheese burger as a takeaway. My daughter started to eat the cheese burger on our way home, the cheese burger bun was moulded, we could not go back as we were in a hurry as we were meeting someone at 1.30pm at home so i decided to call them but could not find their nbr in the directory then i called 2 other branches but was told that they also dont have their nbr as they have different owners so i called telkom directory info for their phone nbr but they said that their nbr is not listed, I even googled but could not find it. They just opened recently and already serving bad stuff, what if she didnt notice it, I am sure she would have got sick, we pay for stuff that should be disposed of which is terrible and will never buy from them again.