"Don't sign" means not to check your information by phone. "No credit information" means that when you apply for a credit card, you give the form ID card and other information to the credit card center, but after receiving the information, the credit card center approved it without calling you to confirm the information, which means that the card was approved without credit information.

Card approval without credit information refers to the bank applying for a credit card and submitting information, and the bank approves the credit card without confirming and notifying the applicant. We call this card approval process card approval without credit information. In this case, the approved credit card amount is generally not high.