[CardFellow]

Visa / MC rates aren't 2.5%.

There are multiple components to the final rate that a business pays, with the bulk of it being interchange, which goes to the banks that issue cards. Visa/MC only get assessments and dues, which are significantly smaller. (Visa's volume assessment is 0.13%, for example.)

We need to know which fees they're raising, and by how much, to know what sort of impact this will have.