Uber charged me Extra R640 for a single trip

I had 3x trips with Uber on 2019 September 23rd (2 trips) and 24th (1 trip) and they charged me 5x but they only returned one payment instead of 2 payments. I queried with them immediately the following day. First it was online response that I had to wait for 7 days for my money to reflect on my account. I made a follow up on email (attached) and with several phone calls, they kept on saying they don’t see the money on their side. I sent them my bank statement (attached) with no success. My last communication with them was in November 14 where they finally admitted the extra amount of R640 deducted from my bank account, unfortunately they told me that I have passed the number days within which to claim back my money while the fault was theirs because they delayed to admit the extra amount they charged me. I got tired and angry chasing after them. I have pasted below their last response in November and since then I have not received anything from them (Uber Support):

"Hi Bongi,

Thank you for getting in touch. In order to best help you, I need to bring in another team. As soon as we have an update, we'll reach back out. We appreciate your patience while we get you the right answer. Sent by Sally on Thursday, November 14, 2019 at 8:40:11 AM"