X Box Game Pass 3 months not accepted !!!

It sounds like, with what you've said, the code has expired, and I'm so sorry to hear this, but don't worry as you can always look for the deal for xbox game pass for one dollar or one pound, for one month or three, months, but you've got too keep an eye
out for it on xbox one or the Web at xbox.com.

Don't forget you can always contact xbox support to ask and find out if the code still works, and that could be the answer?, and they should be able to help you!

Good luck, all the best!

https://beta.support.xbox.com/contact-us

I hope this helps.

When you logged into the account did you use your own user name and password? Do you have a game score of zero?? If yes to own user name and password and no to zero gamer score it is not a new account. Only other option would be to start a new xbox account
to use the live code for and that account needs to be made the home account to share the live.

I have a problem in the game of lnstant war

Unfortunately this code is for new accounts only

It's a free trial for new customer only.

have you active subscription?