Is the organisation still alive? I have been trying to get a membership, and have sent a couple of emails via the contact form, but no answer so far
Tried to get a membership too a few months ago but was ignored as well.
You should be contacted.
I tried that: I used both my business and personal email addresses and never received the verification mail.
The ERPNext Foundation has now been renamed to this:
Here’s the announcement with details of the change ERPNext Foundation: Way Forward