If you just signed up for Swan Force at Swanbitcoin.com/enlist, it takes a couple of days for your custom URL to go live.
We have to double-check that no one else is already using your requested URL, and then twice per week we do a site update to make new URLs and send emails welcoming new Swan force members.
If you haven't received an email telling you your custom URL within five days of signing up, reach out to Support@swanbitcoin.com