Terrible customer service

I have logged numerous help requests on the app since yesterday and I haven't received any. I ordered from Mcdonalds. My order arrived but I was not aware at the time that uber cash is a credit on my account. I asked the delivery man and instead of correcting me took my money which was R108.70. Later someone in my offices explained what uber cash is and told me to request assistance so that it can be fixed. I logged a total of 6 help requests during the course of the day with no responds. Tried phoning but the line kept saying busy, logged 2 more today and the only thing I got was an email add for KFC through uber eats. Yes I was the stupid one that didn't know but the delivery person was supposed to correct me and uber shouldn't take this long to respond