The one who asked for your mobile phone verification code must be fake, but I don't know how the liar called me with this number. Just now, I received a phone call like this. I asked if it was Mr XXX, but I didn't even know his name (unprofessional). Then say that my credit is very good, and I can increase the credit limit. Let me give her my credit card number. As soon as I heard this, I knew I was a liar.