MTN where is my DATA

I upgraded 01.05.2018 ( ********** 331) I didn't get my 30gig data so i phoned MTN to be told i must go to the MTN store Baywest where i upgraded. The store must log a query for my data. (70km drive to the store and back). I went to the store 5 may 2018 and the consultant logged a query with ref number ********** 46422. 15 may 2018 I phoned MTN to be told that the refrence number that the store gave me is not valid, the consultant i spoke to will logg my query my new ref number 1- ********** 3886. 17 may 2018 i received a sms to say that my query has been resolved and i must contact them if my problem still persists. Still no DATA. I phoned MTN and the consultant told me that i must send them a copy of my contract. The day i upgraded the store had a problem with the printer so they didn't give me a copy. 10 june 2018 i drive back to the store to get a copy and the consultant emailed MTN a copy of the contract. I get a ref 1- ********** 3666. Today 24 june i phone MTN because still no data and guess what they tell me. I MUST GO BACK TO THE STORE AND THEY SHOULD FIX IT BECAUSE WHEN I UPGRADED THEY DID SOMETHING WRONG. Every time i phone and if i'm lucky to get through to MTN without being disconnected i get a different excuse. Why promote that with every new contract you get 30gig data and then i upgrade and don't get the data????!!! I want my data!!!!!