A fee of 2.49% is applied to credit cards? How does intuit justify charging that much for process a credit card? How does Intuit justify that fee for a transaction?

Its encourages people to choose this with the following statement:
Earn points, miles or get cash back depending on your credit card. A convenience fee applies for using this service.

In this time of financial uncertainty I am extremely disappointed that they would find another way to charge a fee.