Useless service provider

I've got a few contract phones for my business with mtn. Since two days ago the one sales rep's phone started to give errors. It kept on showing \ not registered on network". He went to MTN's head office in Bloemfontein. At the door the staff were toi toing. Inside only a few staff members were available to help. Unfortunately they didn't have the skills to assist. This morning the call centre were offline. <br> <br> After numerous emails without any real solutions I decided to cancel all the contracts with MTN. Even this seems to be a challenge for the *********** staff of mtn. """