In this case, who makes up the difference? I would assume that it would be on Square's end to make up the 2%-1.32% difference, so it's likely that Square would

In this case, who makes up the difference? I would assume that it would be on Square's end to make up the 2%-1.32% difference, so it's likely that Square would be the one to terminate your account. However, I do wonder what kind of perks you get from a credit card company if you could spend $250k/year with them.