You can earn free miles credit by referring friends or family to join By Miles.
Share the link with people you know, if they click the link and join us then you'll both earn credit for free miles.
In your app and online web dashboard, you will find your personal referral link in the 'Invite Friends' section.
Just so you know, credit can't be added if your friend uses a price comparison site and you can only use one offer at a time. You can read the full terms and conditions here.