Selling food contaminated with Mold

My wife and daughter went to steers woodmead to get lunch upon eating the burger found that the buns has mold called the store and was told please dont report to social media its not about that the issue is its a health hazzard and when asked who is going to pay for my daughters doctors bill there was dead silence asked them if the food gets checked they could not give an answer when asking for the store manager i was told they not in the office this is unacceptable and they should not be operating and trading with rotten food