Pathetic Service/ turn around time/ empty promises

Calls logged since the start of August with regards to data usage issue, calls logged with call centre and supervisors at call centre no results to this day, eventually got hold of area managers number first email to him on the 2nd of September still no head way made only empty promises, need a resolution to this asap or I will have no course left other than to seek legal advise with regards to the distress that I have been placed under over the last 3 months. I feel like the money I pay to Mtn every month means absolutely nothing to them and my queries and requests are treated as un-important the amount might be small to you but I choose to use your services and there are many competitors that I will be taking my business to after the absolute disgrace you call service is fixed. All I can say is I understand why your staff strike why your business is plummeting and why people would rather go somewhere else to do there business. Pathetic is a understatement.