If you are a customer of a big bank — let’s say a merchant unhappy about the fees you’re being charged to process credit card transactions — good luck trying to bring claims in federal court when you’re subject to an arbitration provision. As you probably recall, in last term’s opinion in American Express v. Italian Colors, the U.S. Supreme Court continued its genuflection at the altar of the Federal Arbitration Act, holding definitively that if you’ve signed an agreement requiring you to arbitrate your claims, you’re stuck with it even if you can’t afford to vindicate your statutory rights via individual arbitration.