MTN Terrible Service

I contacted MTN on the 19th Feb 16 after having a look at my statement. MTN was not providing me with the correct DATA and SMS package. They then advised that I will be refunded R405.00. I contacted them again on the 26th which they advised they have processed the refund. On the 1st I noticed my account was debited for the full amount. I contacted MTN, they then said that only once my debit order is clear on their side will they refund me. The agent said that I needed to call them back the next day he cannot diarise my details because he has lots of customers to contact. I contacted them the following day with no luck I spoke to Sanele a manager in the JHB call centre, he advised the money will be refunded. Still nothing I contacted MTN on the 3rd March. I asked for Sanele, they said I'm at the CPT office and cannot be transferred to JHB. I then spoke to the manager in CPT Mohammed. He gave me his email address which after confirming with him is still incorrect. Mohammed advised he will email me stating the money will be paid into my account. This morning i contacted MTN only to realised that they are offline. I WANT ANSWERS FROM MTN IMMEDIATELY!!!!