Credit card consumption requires the cardholder's signature. By signing, you can know who is spending money by credit card, and you can find all the personal information of the cardholder. And through the bill of the issuing bank, we can find out which city and which merchant made the credit card consumption. Every POS merchant has a record in the bank, and all addresses and telephone numbers are available. When you go to the business premises, you can call up the monitoring records at that time.

If you don't do anything illegal, the French open will be long and sparse.