I can not link my PS account to play my game i just purchased

Hey there, 

Could you please confirm which game you're referring to? Also, if the PSN account is linked to another EA account and you're not aware of which account it is, you can contact EA Help Support for further assistance in finding the correct account. 

In case you know the account and would like to unlink the platform from the EA account, you can follow the steps in this article: Unlink your platform accounts from your EA Account

Let us know if you have any further questions,