TD Credit Card charged interest on paid balance
I carry $120 balance forward in order to redeem travel points against it (and expect a small interest charge), then I would cancel the card and close the account, that was the plan.
Yesterday, TD put a $40 interest charge on the $120 balance. I call in and speak with an agent, she said that if the balance is not entirely paid off, then the interest will incur from the day the purchase is made. Mind you it's not a charge card like one of those Amex cards, it's a credit card.
However, at the end, I was able to have it reversed so no interest incurred at all.
We have had a few YMMV Your-mileage-may-vary cases with both TD and MBNA.