MTN Service Shocking

I was contacts by Quadrant MobilePlus to do an upgrade on an existing MTN account. This all seemed above board and I agreed to this. Device was to be delivered in 5 to 10 days. This was two months ago. I have been to MTN, phoned MTN, phoned MobilePlus with absolutely no help at all. MTN shift everthing off to the dealer, or to rententions, who then shift it off to the dealer, whom you cannot get hold of. Back to MTN to cancel the upgrade and they say we need to do this with the dealer. I have never ever had such atrocious service in my life. I cannot believe a company this large has survived for this long with such *********** staff. The only thing left is to report this to the Ombudsmen who hopefully is not as *********** as MTN.