How to notify support about a ticket?

All you can do is wait.

some type of tickets take longer than other because higher mods need to do it

No trick ... only waiting.

Depending on the category it might take longer: https://www.steamgifts.com/stats/community/support

According to my recent experience with support, adding comment to your ticket "bumps" the ticket. This was a response from moderator - "If the winner has activated the game, then you should close the ticket, otherwise just bump it." . Same as discussions. But who knows

Rumors say it's possible if you have access to a necronomicon. Of course, it's best to take rumors for what they are.

I have added comments to my support ticket twice and am waiting for a response for more than six months. Should I open a new ticket instead?