When editing your booking, before the payment deadline, you can make as many changes as you'd like to most options (except for some accommodation and transport questions).
If you have not yet paid for your trip in full, then removing an option will simply reduce your outstanding balance so there would be no refund due.
If you have paid for your trip in full, then your outstanding balance would show a minus amount, meaning a refund is due back to you. All refunds due back to you are processed automatically and sent back along with your damage deposit return, this is around 2 weeks after your return home. We understand this may be a while away, so if you'd like this refund back sooner, you just need to ask to speak to a member of the team and we can get that processed sooner for you.