Sweepstakes clearinghouse Did not receive item I purchased and am being refused to be refunded or have item replaced Arlington Texas

 I ordered a mattress from company on layaway program. Each month I would receive an invoice with balance due indicated. I received October invoice and paid enough that I would be able to pay off next invoice. I moved 11/04/2015. I paid invoice slightly after this date in ful indicating my new address. Company delivered mattress to old address 11/20/2015 prior to receiving final invoice , which check was cashed 01/14/2016. Company will not re-deliver or refund my payments of over $300. Letter dated 04/05/2016 tells me to see if I can arrange to pick up package at delivery address and if not the carrier will return it to warehouse and they will redirect it at that time. Carrier left it on front porch when former address was vacant! I can not locate it, nor should I have to due to the fact the company delivered it before they had even sent last invoice