
Hi there,
I'm Cherrelyn and I'm here to help.
It sounds like the new subscription might not have been redeemed to your Microsoft account yet installing Office alone doesn’t always link the license. Sign in at https://account.microsoft.com/serviceswith the same account you used for setup, then redeem the product key again if it shows as unused. If it was redeemed under a different account(common with pre-installed offers, you’ll need to sign into Office with that account so it reflects the correct expiry date.
I hope this will help and If you have any question please feel free to ask.
Warm regards,
Cherrelyn