How do I use my Roomer credits? Phoebe Updated September 26, 2016 07:23 Follow Your Roomer credits will be automatically applied to your next reservation of $100 or more. There’s a minimum payment of $20. Having trouble? Contact us for help. Check out section 26 of our terms and conditions for full details. Get Booking Related articles How does Roomer verify the reservation? Comments 0 comments Please sign in to leave a comment.