Question Please Help

i bought a black ops 2 russian key & found out it didnt work by activating with vpn, so i bought an english proper key, if i activate that on me steam will it overwrite the ru one? would i be able to play without making a new steam account

I think they changed the RU key thing I use to buy games like that all the time. As for the NA key I would be safe and make a new account or you could try and if it doesn't overwrite it and still doesn't work you could send a help thing to steam or VAC with both keys and proof you payed for them.