Problem with desvinculation and tryng to login a new account in game

First problem : i cant change account in game , i need to get back to mi old account and game keeps login the same new account even if i click log out , how i can log another account now?

-tried to unnistall , steam still knows mi account and log in that one

-tried to erase all archives , steam still knows mi account and log in that one

solution?


Second problem : i cant desvinculate accounts i mean was mi fault to create a new account but i want to erase that account from servers , lack of options in https://id.abrakam.com


Third problem : send a PM to support , been like 4 hours when i sent the mail still no answer for an easy problem
like really , im interested but this late answers ( i still get not an answer ) had to create a topic here .

i dont write in eng , so sorry for the bad eng