Bad Service

In June I requested a uber taxi, it showed the drive a few seconds away. But instead the drive took long to come and the bus arrived before the driver. There was a cancellation fee of R 25.00 which I do not mind paying but they seem to be having problem debiting my card. <br> <br> I tried looking for an email address or number to call them so I can go payment, but cant find anything. <br> <br> I the card I am using is a debit card and not a credit. <br> <br> I am disappointed and have no clue if payment was taken or not. <br> <br> Due to this I am unable to use them again.