MTN Client service and Account queries

ABSOLUTELY APPALLED WITH MTN!!!! I took out an additional reoccurring 6GB data bundle additionally to my normal contract, they are debiting from my bank but i am not receiving the 6GB, I have been complaining and phoning to get this sorted (get the data i am paying for or get a refund) since march, I even canceled the reoccurring data bundle but it is still being deducted from my bank. No proper feedback as to how they will resolve my issue has been given. I am currently at a point that if they dont sort this out immediately i will be taking this to the ombudsman.