Cannot trust Payfast for automated banking

Payfast put through 6 auto transactions on my credit card instead of one. When i discovered it a couple of days later, I spoke to a call center lady who said it would be attended to within an hour. I then got an email which said two days. After two days - and no response - I called. Still no resolution, no escalation and the call was "dropped". I mailed. No response. Mailed again. No response. Mistakes can happen (but shouldn't with banking intermediaries) but what to do when you lose trust with an automated banking company! Surely customer service should be better than this? Perhaps the Ombudsman can help them?