Select Home Warranty Sold me policy that doesn’t exist!

Sold me a home warranty policy for $400/year but it did not include fireplace coverage but for an addition $40 I could include fireplace coverage. I thought that I was paying $440 for the year but they charged me $480/year and when  I filed a claim it was denied, they said the policy did not cover fireplaces. I've been trying for 3 months to get my money back but they are refusing to refund me the $480 that was paid for a policy that doesn't exist! They said that they don't sell policies for $400...they are liars and stealers!