Complaint Review: Cash Rewards Inc Irving Texas

Three years ago, I sold my home and was eligible to recieve a "cash reward" in the amount of $2,000.00.  I sent in the qualifying certificate for registration via certified mail.  At the end of the qualifying 36 months, (November 2) I sent in the qualifying certificate redemption paperwork via certified mail.  (The requirements were confusing and extensive)  Today the mailman delivered the envelope containing all my paperwork back to me with a stamp "REFUSED" and no explanation. I immediately called my realtor and was informed Cash Rewards, Inc. filed bankruptcy back in July.  I don't intend on dealing with this rip-off sitting down.  I am entitled to this money and plan on getting it.  How do you deal with this kind of slime when they are out of state?