Here's how to join an existing Bloom circle:
Open the Bloom Money app and go to the ‘Circle’ tab.
Select 'Join an existing Circle'.
Enter the 6-character invite code you have received.
Click 'Continue'
Check the Bloom circle name and confirm that this is the circle you want to join.
Wait for the circle creator to accept your request to join.
Once accepted, you will see this circle in the ‘Circle’ tab.