R4000.00 account overcharged

I suspect that we are left with no other option but to seek Ombudsman assistance in order to recover + /- R4000.00 *******ly debited from our Bank account. Despite all assurances of MTN consultant at their Greenstone Store as well as warm regards received from MTN's Makhanani on July 20th no progress was achieved. We have fears that this sort of overcharges lately exercised by MTN passed onto their account clients has become part of their business policy. Having said this I have in mind currently enormous number of cases on the Social media and radio programmes, even with a couple of cases within privately obtained intel. We will be considering even changing the network provider since we lost confidence in MTN's good faith business operandae.