Are there additional fees for using WeChat Pay to pay for orthodontic appointments?

In general, there are no additional fees for using WeChat Pay to pay for orthodontic appointments in mainland China. However, if you are using WeChat Pay to make a cross-border payment (i.e. a payment from outside of mainland China), there may be fees associated with the transaction. These fees can vary depending on the payment amount, the currency being used, and the specific policies of WeChat Pay and/or your bank.

It's important to note that some orthodontic practices may charge a convenience fee or other additional charge for using certain payment methods, including WeChat Pay. If you are unsure about whether there will be any additional fees for using WeChat Pay to pay for orthodontic appointments, I would recommend checking with your orthodontist or dental clinic directly to get more information on their payment policies.