There's always a message that it's quick money. Is paying back money a harassment message?

Yes, as long as you download a Tencent mobile phone housekeeper, it will automatically block harassing messages and advertising messages.

This can block blacklisted calls, and you can also set the intelligent interception mode. Through the report of 800 million users of Tencent Mobile Manager and the massive anti-fraud data accumulated by alliance members, users can be accurately intercepted in the cloud. Can intercept all kinds of insurance advertisements, real estate agents, fraudulent calls, and all kinds of network hidden number calls.