MTN not allocating data to account

I have a contract with MTN. A monthly debit order. I have run out of data and need to work online.

Debit order was done on the 8 th of April but I still cannot access the internet. MTN continues to send me a message that I need to top up with one of their packages. This I have done! Over and above my contract. I still cannot access the internet despite the fact that my router is connected! Ridiculous.