Grocery Rebate Redemption $500 Grocery Scam/Beck's Furniture Rip-off Joliet, Illinois

I purchased furniture approx. 1 yr. ago from Beck's Furniture in Rancho Cordova and was given the $500 grocery rebate redemption information to send in.  The first processing company went bankrupt, now the second company is returning grocery receipts submitted "Return to sender, moved left not address".  I have sent a total of 3 months worth of grocery purchases and have received zero gift cards. I also sent in the $9.95 fee to start the whole rebate process, what's going on here?  Has this new processing company also gone bankrupt?  This is infuriating to say the least!  Do NOT get involved in these horrible promotions.  I was sceptical when buying the furniture and should have listened to my intuition...