Issue with PS3/PC code key

Hi everyone. I'm new to the forum and I'm italian, so please forgive me for any mistake.
I've purchased a PS3 copy of the game long time ago, I played for a while then i freezed. Now I have my gamer-PC and I've purchased the PC version on steam. My issue comes here: I put my ps3 cd key on an account, and when I bought the pc version I decided to restart all over and I made a new account in which i put the pc code. Now I have both games but each version is registered on a different account and I can only play on my main character on the pc because the other account is totally useless... Is there any way to delete the ps3 account and to put the ps3 license on my PC account? Please I'm going crazy t.t

Greetings, friend.

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