Worst service ever

I have 2 mondo telkom contracts. I am at my wits end. I e mailed my proof of payments to mondo. They debited my account 2 days later. I called. I emailed. I've spent 2 weeks trying to resolve this. Every time I call mondo staff direct me to telkom. They just can't assist. They do not have any other platform to lodge grievances and yet the call centre does nothing to resolve complaints. The staff tell you directly. No managers available and no e mail addresses. You must call in to complain and they escalate it. That does not happen. I wanna cancel both contracts. I'm fed up of such incompetence. I was offered R1500 in vouchers from mondo collection for an outstanding payment. I paid the same day. Now they have no idea what vouchers I am requesting from there. It's a right royal mess. Both mondo cellular and telkom are utterly useless. I'm livid