MTN - wasting time and money

I have a data account with MTN. This month they loaded 2GB instead of 40GB. We have been running between MTN branches, calling customer care and no one can solve the issue. I rely on my data account to get my work done. It is expensive to load data every few days. Terrible customer service. I can't figure out whether your staff is not trained properly or your systems are not up to standard. This is pathetic really.