More than 200 million customers have bound their bank cards to internet giant Tencent’s QQ Wallet and Weixin Pay mobile payment platforms, the company has revealed — but supporting them is proving costly. “As we enrich payment scenarios and invest in initiatives to deepen users’ mobile payment habit, we are incurring significant bank handling fees on the C2C money transfers which we offer to users largely for free,” Tencent says. “We believe such cost represents a worthwhile investment for the future.”

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