Yes, you can.
Paying more won’t reduce the interest charged on your current payment plans. We’ll put any extra payment towards future bills, with the same interest currently planned.
If you want to pay off your purchases faster and reduce interest, you’ll need to shorten your current plans. See our How do I set or change an instalment plan? FAQ for more.
If you’d like to pay your full balance early, you can replan to 1 month before making a payment.