Issue about the verify Wechat payment

Hello, my apple store country is China Mainland but I am in Canada right now. (I used to change those two countries because some of the apps are in China's apple store and some of them are in Canada). Today I want to change back to the Canada apple store but it failed because it shows that the payment of the current apple store (China Mainland) failed to verify. I verify several times but it still shows failed, it never happened before, and when I click the payment method it shows "To avoid interruptions to your subscriptions and purchases, verify your payment information or add a new payment method". I did have any subscriptions right now and I change to the other payment method (Alipay), but it still failed. I don`t know what the matter is. Thank you