Briefly: Capcom has issued a statement apologising for the PC version of Resident Evil: Revelations 2 not having local co-op, despite the Steam description saying the game would have it. PC Gamer reports the company is offering refunds for Steam owners.
Capcom Apologises For Not Having Local Co-Op On PC Version Of Resident Evil: Revelations 2

They should also apologize for the emulated analogue stick movement for mouse controls.