Horrible service from the manager!

I bought 6 Wacky Wednesdays from Steers Pan Africa on Wednesday. All the burgers were raw so I called the store to replace my burger. I spoke to the manager, Precious, and told her that all the burgers are raw but I only wanted to replace my burger. So I had to wait an hour for a new burger. The driver then delivered two new burgers and requested to take my raw burger back to the store. So I gave him my raw burger to take back. Then Precious called me to say that I should’ve sent back 2 burgers because they delivered 2 new burgers after I specifically told her that I only wanted to replace 1 burger! When I reminded her of that she said that the driver will collect one of the two burgers that he just delivered!! I told her that I though it was really ridiculous as they could not reuse that burger but that she is welcome to collect her burger! She then told me that the driver would have to pay for the extra burger because I only returned one!!! How ridiculous is it to make the driver pay for the manager’s mistake??? I told her that I only wanted to replace one burger, she then sent two new burgers and then wants to penalise the driver for that! Absolutely ridiculous!!! So they collected the extra burger from me! I would’ve thought that since I had to wait that long for my burger after the first one was raw, it would just be good customer service to leave the extra burger as it was already delivered and they could not reuse it in anyway!! The fact that they now sent a driver to collect it just left such a bad taste in my mouth and I will never support them again!