pathetic service

I have a 3GB data contract with Telkom and even though I do not use close to that amount of data, everyday I receive at least 3 SMS's tell me:

"You internet access has been paused because you are using Out of Bundle Data. Dial *180# to purchase a new bundle, or open your browser for more options."

I have tried calling 081180 to get this resolved so the SMS's will stop. I keep getting told this is a technical issue that the call centre cannot resolve. PLease let the SMS's STOP ......