New customer for 2 weeks and already BAD SERVICE

I took out a contract with MTN on 12 September . I picked up my phone on 15th Sep ,and was advised they would process my sim swap. By 17th , i called store to query this and was advised on system problems ,as the reason for no processing . On 19 Sep, I followed up with MTN again and was told my SIM swap failed . I called Cradlestone on 21st , and was requested to come into the store to get another card, which i did . My sim , in the new phone was activated that evening . As per my contract , I was to receive 300 MB data , plus 1G for 3 months as per their promo, 200 sms and 100 min on 21 Sep. I checked my balances on 22nd and noted no data, no sms's. I called the store and was advised that I was provisioned this already . After disputing it , i was told a ticket will be logged and i would get a call back . No call back from store , i am always following up. I called MTN , and another ticket was logged ,and i was told that as per system , I , infact was not give the data as per my package and another ticket is now logged. I was given 1G free data that will expire on 24th Sep , to apologize for issues . I appreciate it , however , it is now 23 Sep and i dont have what I'm paying for