i clicked that little linky to join the un over a day ago but never got the tg or email
just wait. it took 2.5 days for me to get it.
It can take a while, your best bet is to just wait.
Make sure to check your junk email folder, also when I joined, it wouldn't even end up in my hotmail address box, I would suggest yahoo if you're using a free one (even then, check the bulk email box, and turn it to not auto delete junk email), or use something like a gmail address.