Discord account linking not working?

I'm trying to join the discord server but having problems with the account linking process.

I authorise the app and get the message: "You are now linked to Discord. Please wait, this may take a moment".

However nothing happens after that and the "verified" role doesn't appear on my Discord account. I can see the account is linked in my TorBox settings. I've tried a few times over the last few hours but no luck. Any ideas?