Horrible service and lack of feedback from Capitec

I have a savings account with Capitec, in the past few months I have been struggling with the card purchases. When I make a payment it would hang somewhere and appear on my statement as unprocessed meaning that whoever I'm paying does not receive their money. This results in me having to make double payments which is very inconvenient. The has seriously messed up my finances, I'm considering moving to their competitor, I can't accept this kind of service. Their process of reversing the transaction is quite slow and they don't even provide feedback unless you call them.