I didn't pay anything, and my mobile phone kept sending text messages to remind you to pay the verification code.

Ignore him. This is usually the case that someone agrees to pay for your mobile phone number, but the mobile phone number is not released. He will send you the verification code when he wants to pay. As long as he tries several times and can't pay, he will naturally choose other payment methods, such as fingerprint payment and password payment, or the current brush payment. Every once in a while, he may try to get it back again or something. Just pretend you didn't see it and don't operate it, lest you be cheated.