All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.
On Twitter (thanks a user on the LET Discord for posting a link to this tweet):
The platform appears to be borked - I cannot sign in without getting a "Oops! Something went wrong" error. I obviously cannot fully confirm the validity of the information, but given their track record on security, I'm not feeling too good....
Edit: The app still appears to work. Not sure about how Uber is reacting, but I'll take a look in the morning.