No internet connection for a week

I contacted Telkom a week ago about my Internet that is not working. I gave them my correct number and they said a Technician will phone me. I phone them everyday and each day they promise that someone will call me. It has been a week (7 days) and NO one has phoned me. I work from home and it is crucial for me to have internet. I pay almost R1000 a month for this uncapped internet...and they can't give me any answers. I have spoken to numerous call centre agents and every time they promise a technician will phone me. I have no idea what else I must do to get service.