I had some large expenses come up that I couldn't afford, so I used the "Plan it" feature on my platinum card. Basically, you pay a fee, and then Amex lets you make installment payments on the charges. What I did not know at the time is that you pay interest on these payments in addition to the fees! The fees themselves were a couple hundred bucks, and I picked a 6 month payment plan under the assumption that I was paying the fees instead of interest. Am I overlooking something, or is the payment plan completely useless? I would have just carried the balance if I'd known what I was actually signing up for Edit: I confirmed with amex that I am using the "plan it" feature and not "Pay over time" so I shouldn't be paying interest, but because I have carried a balance that isn't part of the payment plan, I'm being charged interest on both. This feels pretty scummy and deceptive