The current offer is one that gives you 250,000 WOW Coins and 5 Sweepstake Coins plus there is the first purchase bonus of  1.75 million WOW Coins and 35 free Sweepstake Coins for $9.99. From what we can tell, there is no need for a sweepstakes casino promo code to claim the no deposit bonus, but this is always subject to change with little notice, so be sure to keep an eye on the brand terms and conditions.