I need help I move to my new user because I was changing my new online ID and then when im use a redeem codes they say this "code is alrady use plz check your downloads" and I can't use my redeem codes to my new user so if you know how to plz let me know
You're a little difficult to understand. It sounds like you made a new PSN Id and want to redeem codes you've already used on your old Id. Sorry but that's not possible.
Just jumping in here to confirm that my friend above is correct, once a code is used on a PSN Account or ID it is considered used & cannot be used again on another one, you would have to re-purchase an online pass if you want to use it with your new Account.