MTN Data

I have bought data on the 15/10/2015 for my 3G stick. After 2 hours the data was not loaded on my 3G Stick. I called the call centre and was advise that there is a problem with the system . on the 16th I called again as my 3g was still not loaded with the data and was once again advised the problem is with them and it will be sorted the same day. on the 17th I called again and still the same. on the 18th I called again and was advise I must stop calling there is nothing they can do they are busy to transfer the data to the people. this morning I called and the lady advised im not the only one that is complaining I have to be patients. How long must I still wait for this problem to be sorted, I had to buy data again this morning as I have to carry on with my work. this is unacceptable.