Clearwire Wireless No Service Nasty Company Internet

This is one ugly nasty corporate monster that you want to avoid at all cost.  I bought a month's worth of service for the Las Vegas convention center and it did not work.  I was told repeatedly by more than one Clearwire representative that it would work at the address I had given them.  The address encompassed the entire Las Vegas convention center and nothing else.  I had ordered the plan in March to start in April and end in April.  When I called Clearwire right after the convention they said I could not be refunded because I had missed their 30 day deadline.  Firstly no service is no service and I shouldn't have to pay for it but Clearwire was including the weeks before when I called to order the service to start at a future date. I disputed it with my credit card company and the dispute was ruled in my favor.  Now I receive a notice from the Clearwire collections agency.  Let's make America Clearwire free!