Part of the reluctance so far is likely due to the fact that both Alipay and WePay charge very little processing fee to the merchants (which also explains their

Part of the reluctance so far is likely due to the fact that both Alipay and WePay charge very little processing fee to the merchants (which also explains their popularity with merchants). If they accept foreign cards do they have to eat the high processing fees that come with credit cards? It is not a problem when it is a domestic bank transfer from the users' bank accounts. They can't really negotiate individually with all the card issuing banks in the world over processing fees, can they?