A company called to send two free travel tickets, and as long as it paid the 38 yuan express fee, I accepted it. Now,

Ignore it or call the police. You paid 38 yuan and you fell for it. Those two tourist tickets are not worth that much money. They just want to cheat you. You paid them. They think you are so gullible, so they want to continue to cheat and drag you into the abyss of fraud step by step. There are many scams reported on TV. Take a good look.