Poor service

I recently canceled my contract with MTN and for two weeks I struggled to get them to cancel until on the 16 April when they sent a message that my contract will be canceled. Immediately after the message my cell phone have been canceled for all incoming calls. When I call MTN they took me to different people without help. Today 17 April 2020 I contact them and they telling me that my contract is migrated to ilula and no request can be made therfore I will not be able to receive calls. The lady I spoke with referred me to ilula department and I had to hold on for almost 1h30min without answer.

I am quite shocked of MTN service. They are very useless. I am now offline(unable to receive calls but I can only make calls and receive messages. It is really frustrating.

Why block my incoming calls for more than 36 hours when I cancel the contract???