I think its time to close this dispute. I was credited my 80 bucks plus promised 20%.
Maybe I will wait for nexchange.io response, if they decide not to write anything here, I will lock this thread in 24hours.
Would like to thanks nexchange for doing what was right, (to be honest I wasn't expecting much, especially not the 20% compensation bonus) I hope other members where also equally credited for their service. I regret that all this had to happen, it was very easy campaign with good rates.
Changing trust feedback in few minutes.