You can take your Rebrandly-purchased domain to an external domain registrar, but these domains cannot be transferred between different Rebrandly accounts.
Most domains come with a 60-day transfer lock, so check that the domain has been registered from more than 60 days before starting the transfer.
To transfer a domain, start the procedure in your preferred domain provider's dashboard. They will ask you for a "transfer code."
To get a transfer code from Rebrandly follow the steps outlined in the dashboard by clicking the domain you wish to transfer out.
Log in to Rebrandly.
Click Domains.
Click the domain you would like to transfer.
Click Transfer out.
Click Send transfer out code.
We'll send a transfer code to the e-mail address in your account.
Use the transfer code in your domain registrar's settings to finish the transfer.