Annoyed by the service

I bought brake pads online according to my vehicle make and model and they were delivered. I collected them. I asked if they are sure they are the right ones and all was good. And when I went to fit them it turned out they were not correct. I requested a refund online and returned the brake pads and the receipt as they asked from returns departments that was on the 17th of July 2023. The branch manager called the head office while I was there and she said I can go because they don’t process refunds only the head office does that and on her side she only had to send the request with the receipt which she did (what she told me) and on the 25th of July 2023 I sent an inquiry asking about the status of the refund and they are telling me to go to the branch AGAIN and ask them to send a request through which I can’t because I have already went and they said they did. The head office needs to call the branch if they are missing any information not to tell me to drive to the branch AGAIN!