and no other response (for 5 days now) from them despite the fact i ve just asked them politely to unblock my account so i can try to get verified again. Poloniex support was sending me emails 1 time every day (not helping though and frustrating) and after i started posting here no other communication.
Well hope its a coincidence...
Give them the time. I know it's frustrating, but there is no other thing that you can do for now.
Also, just because they have replied to you on a daily basis previously doesn't mean they are always supposed to do that. In most cases people are already happy if Poloniex is replying to them at all, so you have been in a more than fortunate situation with how much backlog they have to work through. The more you go against them, the longer it will take for you to finally have your matter solved.
Poloniex doesn't care in the end. If they think you're demanding too much of their attention, they'll quickly shift their attention to the next support ticket because it's easier to solve. It's all about how efficient the support can work, where instead of "wasting" time on solving one person's matter, they could have spent the same amount of time solving more matters.