I've tried that more than once, nothing changed. But I've never been asked to enter the code.
You have to go to #verification channel (on discord) and issue this command :
!verify
(then press enter ofc)
You'll get a DM from Digiwage discord bot : you need to allow incoming DM from strangers first, you can disable it after you've been verified.
The DM will give you the code to enter.