Accusations of being in arrears

I ordered food from Uber via cash payment on the 19th of April for a total amount of R138.90. There food was delivered and i paid the driver R140. Later on i got a message from my app that i am in arrears with an amount of R138.90. How can the driver give me food if i didnt pay. I queried this matter on the app and the respond i got was " We have cleared you arrears of R138.90 from your account. Please note that this is a one-time exception, and should this happen again, you will need to clear all your arrears yourself via credit card or debit card". This is totally not a good way to speak with clients if the problem doesnt involved them. Next time try to investigate your drivers before accusing clients of not paying