If you’re lucky a member of staff from this specific area will see this and provide some support (or a tech savvy member of the public) but generally support is not offered through here.
Normally you’d be directed to in app chat to get help, so perhaps try your luck there. But I wouldn’t hold your breath because I don’t believe it’s something they provide support for.
Same here, nothing pops in the app, I remember weeks ago I did the process and it worked.
Also I am trying to create a new client in the OAuth thing, and not working too…
Tried in Safari and Chrome, clearing cache, etc…
Turns out that the Playground API only works if you have a Private Account. I just had a business account, but as soon as I added a private account, I got access.