Poor Service

I app**** for a new fiber line through Supersonic and was told that installation will take 7-14 working days after payment. I'm now on day 15 and I still don't have a router installed or a confirmed installation date. I've communicated with various Supersonic agents and they all keep telling me that I will be contacted to arrange for installation. All I get is the same ''your query has been escalated'' response and nothing is happening. I've requested numerous times to get a call from a Supervisor but no one has contacted me. I've fallen behind with my work and very frustrated to say the least. Can I get an update on my installation.