The membership number of the card is printed on the card face. After receiving the card, you can find the membership number by looking at the card surface. If you change the card, the membership number will remain unchanged after the card change, and it will still be printed on the card face of the new card.

However, I want to remind you that if you want to enjoy the membership benefits, you must pay the 300 yuan membership fee every year, otherwise you will not enjoy the membership benefits.