"Payment info" refers to the information required to complete a financial transaction, such as credit card details or bank account information, that allows someone to make a payment for a product or service. Full definition
The system uses digital certificates instead of swipe cards or phone apps to exchange payment info in the background. (cnet.com)
Once you get the policy, you can update your address and payment info online, but that's about it — everything else requires a paper form, including updating your beneficiaries. (policygenius.com)