Data bundles

Last thing I don't like to be treated like a fool and forgetting that we as clients we paying their salaries without us they got no jobs.I recently upgraded my contracts with MTN first week of this month they only loaded my bundles for the contracts that I choosed and they said I will get 30 GB for three months meaning they will divide into 10 GB but if it's not active for 7 days I should request it to be allocated which is I did two weeks back but when I call yesterday I was told they only gave a reference number wasn't escalated to that department,then agent did escalated that I would be sorted soon so today I called again I was told the case was not attend.I just want to know why the first agent who gave me a reference didn't escalate it to the right person and why it's problem to load cause now I took their contracts they no longer interest in servicing clients,why always you have to go extra mile to be assisted maybe I should cancel it and move to the other provider