If you make an additional payment through your Flash Pack account, your upcoming scheduled instalments will continue as normal. Their payment dates and amounts won’t change.
Instead, any extra payments are deducted from your final instalment first, working backwards through your payment plan. This means the more you pay in advance, the less you’ll have left to pay towards the end of your plan.
You can make additional payments through your Flash Pack account at any time up to 90 days before departure, when the balance is due.