See this article for instructions on how to make payments early.
If you need to reschedule payments to a later date (e.g. to align with your payday) our Customer Experience team can help with this. Get in touch with us here and we can push out your payment date by up to 7 days, as long as the instalment payment is not due today, the date hasn't already passed and the order payment date has not been moved once before.
Please note, we require at least 48 hours' notice for changes of this type and can only move payments once per order.