Can I use WeChat Pay to pay for retainers over the phone?

WeChat Pay is primarily designed for in-person, online, or in-app payments, and it may not be possible to use it to pay for retainers over the phone. The ability to make payments over the phone using WeChat Pay would depend on the service provider's policies and technical capabilities. Some providers may have the capability to process payments over the phone, while others may not. It's best to check with the service provider directly to understand their policies and capabilities for processing payments over the phone using WeChat Pay.