You can use a ballpoint pen or gel pen. Be sure to sign the card when it is still new. If you use it for a period of time before signing it, there will be a layer of oil on the surface, and even if you sign it, it will be erased. It's best not to sign with a pencil.

activation of VISA of China bank:

1. activation of customer service phone. The China Bank credit card must be activated before normal use. After you receive the China Bank credit card, whether it is the main card or the supplementary card, please call our customer service first, and complete the setting of the card opening and telephone inquiry password according to the guidance of the customer service staff.

second, online activation. Log in to the online banking of Bank of China, click "Log in to online banking", select "Credit Card Opening" and follow the operation instructions to open the credit card.