MTN- Billed for data that has not been activated on my number

The service offered by MTN is utterly pathetic. I loaded a 2GB weekly data bundle yesterday at 08h18 from the MTN My Contact portal. More than 24 hours laters, the data still has not been activated on my phone . I have called the contact centre multiple times this morning with no success. They cannot give me an answer as to why the data was not activated and they also cannot activate it for me manually. Imagine my disgust to see that you have have billed me for the data but no one seems to be able to actually activate the data on my number. So what now MTN? I await your response in anticipation.