HDFC Bank quietly updated the SmartBuy reward caps for its credit cards, etc, from July 1. The monthly cap applies to vouchers bought through SmartBuy partners such as GyFTR and Woohoo. While the total monthly cap is the same, only 3,000 points will fall under brand vouchers for Infinia, Diners Black Metal & BizBlack Metal, Diners Black, Regalia, BizPower, etc.