I guess Arby's decided their promotion was so successful that they have extended it thru Sept!
Every Wednesday for the next few months Arby's is giving away free food with purchase. Of course each restaurant may be different so you might want to check before you make a special trip. Although if your restaurant participates one week chances are they will participate in them all!
Arby’s Wednesday Freebies Calendar
Sept 2 - Get Free Swirl Shake with any sandwich purchase
September 9 – Free Regular Roast Beef sandwich with any soft drink purchase
September 16 – Free Regular Sidekickers with any sandwich purchase
September 23 – Free Roastburger with any soft drink purchase
September 30 – Free FruiTea with any sandwich purchase