By way of information ... this is how registration/activation occurs.
1. TeaChat is currently set for manual activation which requires admin (currently yours truly) approval of registrations prior to activation. Although this requires more time and effort on the front end for me, this has proven to be the best spam prevention for this forum ... it is an unfortunate reality.
2. Once a new member registers, I receive instant email notification.
3. On most days, I have the email account open, and I will then activate (or decide not to) a new registration once it has been double checked on my end. This may happen within minutes or hours of a new member registering, rarely longer but it does happen. However it is always activated on the same day.
4. Once I activate the account, the activation confirmation email should auto send immediately to the new registrant. Why some new members receive this and some apparently are not ... I do not have an answer at this writing.
If you do not receive this second email, I would suggest checking your spam box and/or your spam related settings.
Even if you do NOT receive this email, you might already be activated. Go ahead and try to log in to TeaChat a few hours after registering.