breach of contract by compuserve ripoff

I bought a compaq pesario at Circuit City. There was to be a $400.00 Rebate. I forgot to file the paper work in time and when i called compuserve they told me i wouldn;t get the rebate. I continued to use Compuserve with out the contract to worry about for a couple more years.

When I maxed out my credit card and they disconnected me, I offered to pay by check to get back on line. they refused the payment.

Compuserve has been trying to collect the $400.00 rebate they never paid and has turned it into collection. I refuse to be blackmailed by these frauds.
Since Circuit City has been involved in so many of these, it seems to me they should be considered just as fraudulant as compuserve./

Donald
Rockford, Illinois