Repeated incompetence from Telkom

I've had a Telkom account for years. It's never been in arrears. Last month I app**** for a credit limit increase because I wanted to add a data contract. I was never contacted after the request, but thought nothing of it. Payments go off on the 28th of the month via debit order.

Unfortunately my credit limit was accidentally decreased instead of increased (through incompetence at Telkom) and all four numbers linked to my account have been suspended without warning, two days before my automatic debit order goes off. This complete incompetence by Telkom will unfortunately influence my credit rating (currently 701) as well.