rebate shop
n.β Β«Rebate shops have no such overhead to cover and give most of it back to their customers. Typically, that amounts to between 3 and 12 per cent of the amounts bet, even as high as 18 per cent on some exotic bets.Β» ββComplex betting world” by Chris Young Toronto Star (Can.) Apr. 17, 2004. (source: Double-Tongued Dictionary)