Do not get what you apply for

I app**** for a contract back in September product code or contract cod ********** CT14. It is a 10GB contract but the first 2000 custumors get an extra 10GB night and 10GB day wit the normal 10GB. After i explained to the guy in store i do not want to take the contract if im not part of that 2000 group. Completed the paper work almost 2 weeks later still waiting for the contract i was told that im not allowed to take it without a device apparently thats an instruction from head office, to me its just mtn way of letting old stock going out. By the time i got the contract with device and checked the sim only the 10GB were loaded i contacted the store they sent in a query. For almost 2 months i hear nothing about it and when i try to follow up at the store the answer i get is they are waiting for the system responds what what what. Today i phoned again ti check whats going on while im speaking to the same guy at mtn wonderpark i received a sms that my query 1- ********** 1654 has been resolved and have to call back within 48hours if problem still persist. After several attemps maybe 20 or more times trying to call the store back the guy picked up and said "they" resubmitted the query and again while im on the phone with him the sms comes through that the query has been reopened. I dont know who is doing what but in afrikaans we say GATVOL. Please report this or di what you need the contract cant be cancelled because i have used the data they gave me while in false hope that they will sort this out.