Can't join a team

Hi, I am trying to join a team: mempool localization | Transifex
When I open this link, I get to a page about the project with a “Join this project” button.
Up the top, I see the “Log in” and “Sign up” buttons (even though I am logged in to Transifex on another browser tab).
I click the “Join” button, it asks me to select the language (my language is “available to join”), I accept the license agreement and submit.
Then it takes me back to my logged in main page, where I am linked to one of my other organizations, and I can’t join this one organization (mempool).
I have tried in different browsers…
What could it be?
I am registered with 5 organizations. Could it be that this is a maximum? I have tried to leave an organization, but I also can’t find how to do that.
Thanks!

Hello dear rafaelpac,

I wanted to add some details to clear the field. When you click on Join button and choose the language you want to contribute to, then a request mail is sent to the admins of the mempool organization. Until this request is accepted by an admin or project manager in that organization you will not have access yet.

So, please allow some time until the admins of mempool review your request and you will be notified, if and when they accept your request to join the organization.

We thank you for your interest in Transifex and your willingness to contribute to public projects.

We remain at your disposal.
Christos

Ok, thanks.
They might have received dozens of emails from me then. Transifex should display this message and not simply say nothing.
I thought that I could maybe try again, try another browser…