REALTYTRADE cheated me of refund Orlando, Florida

This Co. promised to sell my timeshre at Lake Tahoe within 6mo. or refund me money Ipaid them $1295. ater the six mo.period I call them requesting a refund because I had not received any calls. I was told that they sent me a responce on april 20 2010.  Which I think was a lie because I check my e-mails daily and I didnot receive any offers, also I was told that I did not request a refund within 10days of the end of my contract (it was on the 11th day) therefore I was not entilted to a refund. This is not acceptable. Please help me