If you did you would have completed a credit application and your rate would have been affected by your statement of net worth/assets/liabilities etc. Rates are risk adjusted.
Adjustable... exactly!
Lying on a credit application is fraud. You don't even have to obtain the card, or default on paying your bill. So nobody has to lose anything for the fraud to occur. Simply lying on the application is fraud.
In the case of Trump it can be equated in the following example.
Say Honest Joe Lunchpail making $30,000.00 a year as "Sanitation Engineer" applies for a credit card to start his small business.
Probably gets a low limit and high interest rate card.
Now imagine he falsifies his income to $300,000.00 and adjusts his job title to "Engineer-Sanitation Division".
He now qualifies for a no-fee, low interest high limit card.
This defrauds the bank of the potential higher (interest) rate of return on their line of credit as well as eating into the (capital) factor they could otherwise lend to a more creditworthy client.
The $355 million judgement is a
disgorgement to claw back the benefit of the fraudulent statements made by Trump. Not sure if it was just lower getting lower interest rates or if they factored in the enrichment Trump got from being able to borrow more than he would have been able to if his statements were true and invest elsewhere etc.