Thank you everyone who supported me here and in private.
Finally after 51 (fifty one!!!) days I got my 2.7 btc back.
n.exchange/en/order/OD0IG9
n.exchange/en/order/O5KDMH
In blockchain:


During the correspondence they said that transaction that had brought bitcoins to my wallet ( that took place 2 and 6 months ago) had 2% bad score. Nutz.
And at the end they released the funds and send it back to me thus admitting that their analytic tool was not correct.
As a supporting documentation they wanted me to show bitcoin purchase contracts with personal details and IDs of counter parties, can you imagine?
Big
THANKS goes to Alex from PCS who provided me the nominees who acted as my counter parties.
https://bitcointalk.org/index.php?topic=5244746.0 For sure my real counterparts refused to cooperate and reveal themselves to the NExchange ( who the hell is N.Exchange

)
After the game is over I can confirm once again n.exchange (led by Belousov Oleg) in cooperation with Exodus make it their business model - lock the funds in swaps and require unfulfillable AML/KYC conditions. Exodus being an old company cooperates with n.exchange do do this dirty job with their hands.