MTN Disgraceful lack of service

I have been phoning, emailing and even going into the stores to get my MTN app sorted out since November last year. Besides emailing customecare (should be customercareless!!!) I have even contacted their complaints department by email, which states that they will respond within 14 days. Even received read receipts for my emails but NO, they also cannot be bothered to reply to me. Was very happy with MTN initially but after this lack of service, I am most upset that I renewed my contracts with them. WHY must we South Africans accept such terrible service. I would appreciate a senior manager contacting me to sort this out seeing that your customecare and complaints people cannot be bothered to do what they get paid to do, you should fire the ****** lot of these useless oxygen *****s!