Region lock for PES2016 on Steam

Hello

as of this morning, PES will not be available in numerous countries for online purchase and download, among them mine country also.
I have pre-purchased cd keys on cdkey.com and did not have received them, but, I cannot install PES via Steam. I cannot even find PES2016 trough store, its blocked in google search , and steampowered.com game page is blocked

Will I be able to play online is I add a non-steam game to steam and add key?