Yesterday, I have visited a IEO group and asked for attention from admin.
The more important thing is not to visit or get involved in all these IEO or ICO groups/projects, what's the need, when its either an outsider of the project trying to scam you or the project owners themselves, either way you're(possibly)being scammed.
I don't get what you said. Why will not I visit IEO telegram group? It's important get updated with the community if you want to invest or already invested.
Always ask questions and answer them on public. Avoid pm.
Many scammers will try to fool you on pm. When you are posting in public many people will give their opinions and maybe even tag a scammer before you notice anything unusual.
PM can be dangerous here as well, scammers target specially newbie to send phishing link.