NO SERVICE!

In the beginning of April I signed up with Supersonic, I eventually had to write a complaint regarding no one getting back to me about the installation. The technician was here yesterday to install my router but no internet service. No one knows what the problem is, I have spent so much money on airtime phoning Supersonic to find out what the cause is. Please guys! I cancelled my service with MTN in order to go over to Supersonic. I work from home and cannot afford to buy gigs of data every day! Please can you get someone to phone me to sort this out asap!