Free Arby's Roast Beef Sandwich with Receipt Survey

On the back of every Arby's receipt, is a survey form. If you fill out the online survey, you will get a code for a FREE Arby's regular roast beef sandwich-no purchase necessary! Guess what happens when you redeem your code? That's right, they give you ANOTHER receipt with the same offer on the back! You could potentially keep getting free Arby's sandwiches indefinitely! (After your initial purchase of course.) I tried this 5 times in a row and it worked! Why did I stop doing it you ask? I let my husband have the code to get a free sandwich for lunch and he forgot to keep the receipt. :(  Oh well, I'd say I got my money's worth!