Thanks for sharing the great info!
I am going to China next month, have few questions regarding wechat pay.
1.) Can I use wechatPay （Msia version) in China? or I must switch to wechatPay China?
2.) Can I download wechatPay (China version) while I am still in msia?
3.) If we added BP card to wechatPay (China version), they will charge BP in MYR? Seems like from the screenshot you shared with us, the conversion rate is charged by wechat instead of BP.

Hey, appreciate your reply.
Further query on question 2. There is no switch wallet region function in my Wechat Pay. Any idea how to "activate" the china version of Wechat Pay?
My GF's Xiaomi which bought from China have both China and Msian version of Wechat Pay. But not mine.

Thanks for sharing guys. I guess I've no choice but to use alipay at this moment.

Thanks. It works for me. But I cannot receive the money. Keep pop out need me to link to a bank card issued in Mainland even thought my identity has been verified.