They Overcharged me

I would give them a -100 if I would. I had R65 in my Uber wallet and my order was a little over R150 at check out they took the R65 from the Uber wallet and R153 from my card but they claim they only charged my card R87.

I have sent them multiple emails and screenshot showing them but they keep saying they charged my account R87 but account says otherwise and ther invoice also says they charged me R87.