Unauthorized mid month debits (R3,000) during Covid19

We had LTE with Telkom at R1,200pm for 200gb which has reduced to 100gb without any change in price. I contacted Telkom to advise that, my wife is a small business owner and can not afford the 1200 payment at month end and asked that they reduce the package to minimum (R50) & used my bank account for debits effective end April. Yesterday the 15th they took R2000 from my account and today another R1200 without any authority. I generally spend 2-3hours when trying to call them and to make matters worse, their consultants don’t really know what they’re doing. I’ve been promised that the matter will be escalated but in my experience, they never come back with any feedback, nor do they actually escalate anything. This is a my last hope of this matter being paid any attention. My advice to anyone considering it, please save yourself from doing any business with this *********** supposed service provider.