ANNOYED, FRUSTRATED CLIENT

I finished my cellphone contract last month already. I have been trying since then to be assisted to change from contract to prepaid without any luck. The agents drop the call everytime on my ear saying they transferring me through to retention. I manged to go through but the Agent said she's having system problems, she put the call on mute for more than 15 minutes (maybe hoping I drop the call) which is what I did. Is it that difficult to close a cellphone contract???? . We have better things to do than to waste our time playing hide and sick with agents in the call centre. This is bad and poor service. I wanted to upgrade my contract but I won't anymore. The service at MTN IS PATHETIC AND DISGRACEFUL SIES!!!