TERRIBLE SERVICE FOR UPGRADE

MTN called to advise that my upgrade will be ready, Glasson Markham called and sent information on the new phone i was interested in, I got my new phone within 2 days all was good, then noticed that the sim card does not fit into my phone they sent the wrong sim, I tried to call but apparently from a land line difficult to get hold of MTN should have used my cell. I eventually mailed Glasson to please assist me on the18th then again on 21 Sept, eventually after afew attempts got hold of supervisor and she advised she will make sure that I get my new sim, still no word no call from Glasson she tried me once on my landline when I had to go into an MTN store to try reach her. but never tried again or on my cell. I only got my sim card on Monday 28th when I called they said I have to go into a MTN store to do a sim swop. which I might aswell just have gone into a store to do the whole upgrade, would have saved me a lot more time. I went into Balfour park to do the sim swop, they said would take between 24 to 48 hours then today got a message to say my sim swop was cancelled, no one told me to sms yes, I never reply to sms