WeChat:
https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=1_1
Instructions for WeChat refunds:
http://kf.qq.com/faq/140225MveaUz150107JR7bEN.html
Alipay:
WeChat:
https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=1_1
Instructions for WeChat refunds:
http://kf.qq.com/faq/140225MveaUz150107JR7bEN.html
Alipay: