How the credit card information is stored into the NetSuite database?
It is illegal for NetSuite to store credit card numbers or CVV codes in a manner that is accessible to users. It is a huge liability. Once you have customer consent, credit card information can be stored in a manner that allows it to be charged again but the exact details of the card cannot be seen.
Not sure how useful for SuiteCommerce but there there is a permission related to Displaying Unencrypted Payment Card Numbers with an Explicit Permission