Double charged but 2 different amounts

Good day,

Hope you will be able to assist. I was double charged however it was 2 different amounts and when I contacted Uber Eats, they told me that the 1st payment of R326.7 failed because I have more than 1 card active. I checked and saw that I do not have multiple cards linked for payment. I emailed again and they said the same thing, the 1st payment failed and that is why a 2nd payment of R341.7, i would like to know how the 2nd payment is more. In total they deducted R668.4 from my account for a debonairs order of one chicken triple decker and a tikka chicken pizza wrap.

Why would I need to contact my bank when I can Cleary see 2 amounts has been deducted.

The responses I received from them, made it very clear that they will not refund my money