Excuse me, can I reply to a text message sent by a strange mobile phone number? Could it be fraud? Will you be charged a lot of phone bills when you go back?

First of all, see if the other party's number is normal. Generally, a normal number will not generate additional costs. You can call the mobile phone card operator for specific charges.

Secondly, according to the content of the message, if it has nothing to do with you, or if you send the winning information, you don't have to reply.

Third, if there is a link in the text message, don't click it to avoid cell phone poisoning.