Angry client

My husband has signed up with supersonic and we received our router within 2 days of payment. We were so happy that delivery happened so soon, but now we sitting with a sim card with no Internet. After reading one review it seems we never gonna be set up!!!! I am so angry right now. None of the agents has called back with proper feedback. And now im starting to think that theyve been feeding me lies. Supersonic solve this problem or im going to the ombudsman!!!!