Now on personal note and not realted to my realtionship with Alprockz.
ICO Token Price:
1 HAVVEN = 0.67 USD
Havven price hit 0.77$ at May 22 2018. (Check Coinmarketcap)
The fact you didnt sell and book your profit means it's your mistake. You can't blame someone for your own mistakes you have to take responsibility.
Second, HAVVEN did re-branding and they are now Synthetix (https://www.synthetix.io/), so yes they still exist.
Your article is simply not correct and not accurate. I suggest you do some homework first.
Havven just disappeared from Coinmarketcap completely. I guess the team just didn't do a great job of getting the word out on Coinmarketcap because all of the sudden if you search for Havven there is no sign of it and there is only Havven protocol in its place which was confusing to me. Maybe the blame could be placed on coinmarketcap? I was not given any SNX coins in exchange for my Havven tokens either when the swap occurred so that's a valid frustration I have here, but I'll update the article for better accuracy.