Attempted theft from my bank account by Uber

On the 6th of April, I received 16 failed transaction notifications on my phone from my bank because of an incorrect CVV number. I immediately realized that someone was trying to *******ly withdraw money from my account and phoned my bank to notify them. They confirmed my suspicions and told me that the transactions were from Uber and that they had tried to withdraw R11.00 from my account 16 times. My bank then suggested that I cancel my card immediately which I did. I am a client of Uber but had not used their services for a while so the transactions were by no means for a recent trip. Also, they have a minimum fee of R20.00, not R11.00. I tried to contact Uber's head-office in Johannesburg to let them know that someone was using my card's information to ***** money from my account i.e. that they have a ***** working for them, but conveniently they do not have a phone number on any of their web-sites. The only way to contact them is via their app. Judging by the responses I have been getting it looks like they have a computer generating generic replies as non-of them have addressed my concerns what-so-ever. First, they asked me to double check that I hadn't recently taken a trip. Then they said they could not find the bill which I was contesting. And then they recommended I ask my wife and children if they had not recently taken a trip on my account.....I happen to be a single man. Eventually I gave up. So just wanted to first give a big middle finger to Uber for their total lack of meaningful assistance and their pathetic response to what I consider a serious situation. And then secondly I just wanted to warn all Uber users out there to check their bank statements for small amounts of money being withdrawn from their accounts. R11.00 might seem insignificant but all those little amounts being withdrawn from a lot of accounts adds up to a lot of money for the person/company who is doing the *****ing. Based on past experience I am not expecting Uber to reply in any constructive way to this complaint. Pity, because you were such a great service. Over and out!!