bad service

Since Friday the 26th February my phone has not been working as it says emergency calls only i have been sent from pillar to post no one is giving me a solution. 1st i called MTN 135 on Saturday the 27th they could not tell me whats wrong but she insisted that i remove my sim card and insert it again but still it says the same thing. i then called again on Monday and iv been told that i'm on the new system and i should hangup and phone again i did that but still i could not get through to them. eventually on my 5th try to the call centre i was told i owe R7500 i asked how come and that is not possible then i was told thats why you it says emergency calls only, the lady then advised me that i should go instore i did that and i made a payment arrangement of which i the lady there said it might take 30min for your phone to work i said ok as it was late in the day so i gave it the night but still was not working she said i must phone 135 of which i did there i was told i need to email legal department i have and they have not responded till now. when i phoned again to 135 they said nobody can assist you.

My frustration is its been a week and no wants to help me and i dont have a phone ii have even asked them to do a sim swap maybe it will work. i just want to receive calls.

can someone please help me urgently. the cell number ion question is ***

Kind regards sydney ***