MTN I just useless

I took out a contract in December 15 for my son. there was a ***** charge against my name which after 3 weeks and an affidavit from the SAP to say I had not had a contract I was finally cleared of the charge. Or so I thought. I went in January to take out a second line for my daughter and it came back I had a ***** charge even though I was given a reference and a reply on hello peter clearing me of it. ***.<br> My second problem is my son should receive 500mb of data but for 3 months has received nothing and I am paying for it every month. I made two telephone calls and went in to Gatemax and spoke to Ruben who was so helpful and assured me the data and ***** charge would be fixed but that didn't last long when nothing was fixed. He just ignores my e mails. The ***** department is just as bad. I get confirmation my e mail has been received but no one bothers to get back to me. I am surprised such a big corporate can have such bad customer service but I suppose that's what happens when you are one of 3 players in the market. I don't know what else to do except to advise my bank to cancel my debit order until such time that my issues are resolved.