Absoluut nonsens!

I ordered a meal via app, have a promo code and the order not only arrived with the full price (no discount) but I was also expected to pay upfront. I told the driver to cancel the order which he did and then recieved a cancellation confirmation AND a prompt to pay an outstanding amount on the order I didn't recieve. After attempting to contact UberEats multiple times via phone and on their app still no response. This isn't the first time, if it's not payment issues it's order issues. If not that then the order is an hour later than the estimated time. I've kept quiet thus far but Ek is nou gatvol!