noted and thank you for checking Flabbi. could you also check on the following username 'mangojai501' , thank you
I can't find my friend

Hi Martin, thank you for suggesting a solution but that option doesn't work most of the time; For example, a person with the following username 'paulvrgese07' registered at the same time as RonanChau but I'm unable to locate using the method suggested or even search under the members' field. Is there a delay in getting the usernames replicate in the chess.com database for new members and if so how long it takes for the username to be replicated? it's been 4 days since the person registered but I'm unable to locate the username
That means no account exists under that name. It was either changed or it's incorrect somehow.

noted and thank you for checking Flabbi. could you also check on the following username 'mangojai501' , thank you
That isn't an account.
Tell them to play an online game and then search the opponents user then click recent games and your friend should be there
Name does not exist