POOR SERVICE - MTN

I've been struggling to cancel a contract with MTN so I sent an email to customer care and received an automated reply with a reference no and that they will contact me. 4 days later no one contacts me. I send another email on their reply. A further 2 days go buy and I don't get a response. On the 08/03/2021, I called their customer care no and she redirects me to cancellations after giving me a reference no. While holding on for the retentions department, I get an SMS saying that the query has been closed. I haven't even spoken to anyone yet. I held on for 30 minutes and there was no answer and my query has been closed. Very disappointing and extremely frustrating