MTN POOR SERVICE

My cell phone upgrade was due in February this year .. I went into the MAN shop 92A in the Shelly Center South Coast in Febriaru and saw a 7" Samsung Tablet which was advertised in the brochure and on a special deal. (I work in the Transkei and am away the whole week and can only go into the MTN shop on Sundays) I order the tablet "which was advertised on a special deal" at the end of February and promptly told they had no stock but would order. The following Sunday I went in to see if my order had arrived .. nothing!! I was told they were waiting for the stock. The following Sunday I was told my tablet was on the order and my wife could collect it on Monday .. I said I'd check it the following Sunday. Sunday I went into the store and was promptly told there was no tablet. (Had they sold my tablet to someone else??? Only they will know) In the following week I was phoned and told my tablet had arrived. I arrived home early from the Transkei on Saturday the 17th March early enough to go into MTN and take delivery of my tablet. When I got the tablet home it wouldn't work on the sim and I thought maybe it was the sim swap. I used my WiFi router and thought maybe by Monday the sim would be sorted and I could use the device without the router which it didn'the and had to wait until Wednesday to take the tablet back to MTN. Wednesday the 21st March being a public holiday. After testing the sim port it was discovered that it was faulty and I was within my 7 day warranty period to report any defects but they would not book the device in because I didn't have the box with me. Unfortunately to go home and come back again the shop would have closed so had to wait until the following weekend. When I took the box and tablet back the following weekend I got to the shop just as they closed the door .. I was refused access to hand the tablet and box with its contents in .. and what's more the lady who filled in my contract turned me away and said she couldn't help me. On the 30th March they took the tablet it's box and contents fromantic me. I requested from them for the owner Mr Hayden Harris to phone me. It's now gone 2 weeks with no call from him at all. My wife visited the store for me today and they had no news whatsoever for her. Can someone advise me what to do .. because there's a Consumer Protection Act .. but I was laughed at when this was mentioned. I've been a loyal MTN customer since 1998 .. is this what their service has become like?