Faceless Uber!!!

On 4 June, I was on an Uber for a trip of approximately 10 kms. I was later charged R 1809.82 instead of approximately R 100.00. Although I was told by Uber after much effort trying to get someone to respond to the request I placed on their app that the trip cost R 94.00, and I would get a refund, I am still waiting. I have asked them twice how I can delete my credit card details and all I get is an unsatisfactory computer-generated response informing me I have to have a payment option. I do - it is called cash. A friend only has that option! The problem with doing business with faceless apps and no call centre, it eventually leads to the impression they don't care. I want to do business with people who care and not an app when I have a problem.