Handed over to lawyers after applying for cancellation October last year

I have been trying to cancel this contract since October Last year. I sent an email . They mentioned they requested a Pin. I let them know that I don not have the pin since I no longer use the sim nor do I have access to it. I have messages that were sent and I recieved a response."Dear Valued MTN Customer

Thank you for getting in touch with the MTN Retentions Department. Due to a technical fault, the delivery of your email to our front-facing team was severely delayed. We apologise profusely for this." I responded to this and they then did not reply afterward. I am now being handed over to lawyers for non payment After I requested cancellation.