****ming people with **** code

Im utterly disappointed with thier service I uploaded my account and decided to try out for uber eats cause I saw that first time user's get a discount minimum order must be 80 or more and the discount is up to 100 so I clicks on it and it showed restaurant that participate and use it at McDonald's and when checking out it indicated the 100 off was supposed to pay R31 but they deducted the who 131 and delivery fee I think,when i tried to cancel the order was told will be charged 119 and of which is ******* cause I qualified and check out amount was not same as what they deducted on my PayPal account and when I query it they keep on saying I must send a screen shot of the code and email addresse but I took screenshots of the app stating that and pictures of the transaction.