Thanks @vcunat for your reply. We have solved it few days ago here. When I was searching about topic about NAS, the topic you have mentioned was not answered, so I was not sure, if it is the right company. They didn’t have omnia NAS on website so I recommend them to do it 
But I can confirm, that it is the right company, and they are very polite. I hope they have no problem to send it to other countries.
Still there are a lot of questions not being answered. Original power cables here, documentation of NAS BOX and as you see there are lot of topics across turris forum about it but still not answered from Turris Omnia team. Only they have said that they wont be delivering perks anymore! Shame 
I prefer one official topic related to perks, where all these informations will be together.