I didn't buy a car, but I got a text message to check the car.

This is usually because the PICC salesman took your number to register PICC account. When the salesman really doesn't have a mobile phone number to register, he will enter the number at will to register, and this website without a verification code is needed. In the final analysis, it is still the low-quality behavior of PICC salesmen, regardless of whether it will bring trouble and trouble to others in order to make money.