Bad service

Good day,<br> <br> I am writing for the second time about my complain. I have two reference number that I got from MTN REQ:*** and REQ:607992. I have been waiting for MTN management feedback since January and now is towards end of April. Everytime when I call MTN customer services they always tell me your complain is with the management they are busy with it. Is three months down the line now. Just to remind them I took a contract in December and it was coming with a R250.00 voucher but I never received the voucher. I made it clear to MTN that they won't debit my account without them giving me the voucher. Since 4 months is I want to be credited that R250.00. MTN suspended my simcard I can no longer call them to complain further about their poor service. It is unprofessional of them to advertise something but when you purchase you don't get full benefits of what was advertised. It's about time they sort this problem.