Ubereats driver

I am highly unhappy about there drivers! Yesterday (28 July 2021) I ordered sushi and my total were R265.74 when the driver arrived I handed him R300 and said he could keep the change, He did not even bother to say thank you. And then this morning I get a notification saying I did not pay the full amount and still owe them money. When I followed up with them they still acted like this was my fault and said because this is the first time it happened to me they will take it off but I must know this is the first and last time. I will NEVER support them again!!! Mr Delivery all the way from now on!