Pathetic customer service and support

Their customer service and app and app support is pathetic! I have 2 unresolved issues from weeks ago wherby they advertised a buy one get one free promotion. On both occasions I placed the order and only received one meal, and they are blaming me and saying I placed the incorrect order. Yet their system did not pull it through correctly. Screen shots were provided. I placed another order with kfc after, I did not receive the correct order. I received short meals. Now I see they are 2 transactions for the 29/11/2019, the one was for the purchase that I'm aware off. The second transaction of R56.50 I have no record off. That is an unauthorized transaction which is now taking me days to sort out because they are so dumb that they keep saying its sorted out but no one can tell me what it's for! Their customer service is pathetic, too fast to close and resolve a case when it hasn't been. There is no number to contact them on and speak to a human being, I have requested a call back from their social media team. No one has called me back. I even stated that I wanted to raise a formal complaint, that was just ignored. Never in my life have I been so disgusted with such pathetic customer service!