Logging into old account

I'm Samy an independent advisor. Welcome to the Xbox community. How are you?

You must log in at least once every two years so that your account does not go down, Microsoft may delete your Microsoft account and associated services. But since you don't recognize the achievements, you may have logged into another account.

You can change your email on your Xbox by going under My Xbox> then going to account management> then going under Windows Live ID. Hope this helps!

Go on the console and go to the MY XBox tab and go down to Account Management and then select Windows LIVE ID.

Verify that the account logged in to the console is the same account that has the subscription service.
On the old console has the account been logged out?

try to log with your old account