MTN doesn’t deliver the service they sell.

Every time I buy airtime, MTN takes majority of my airtime, for what? I don’t know. I don’t owe them any money for Xtra time, I don’t have any subscriptions with them. I bought R100 airtime, less than a minute later, I only had R33 left. This is not the first time I’ve had to bring this issue to their attention. They just keep taking my money without consent.