Apple TV Subscription Not Accessible

Thanks you for reaching out to us @marzie78! I’m glad the following steps shared over direct message were able to resolve this issue:

If you’re new to Apple TV+:

Visit this link here. This link will also be sent to your Xfinity email address once you purchase your Streaming App offer. You'll need to be logged in to your Xfinity account.

The header should say, "Activate your Apple TV+ service today". Below, there's a button that says, "Activate Apple TV+".

You’ll be re-directed to Apple TV+’s activation page.
Click Continue.

The next header should say, "You have Apple TV+ with your Xfinity plan". At the bottom, there's a Continue button.

Enter the email address you’d like to use for your Apple TV+ account. Then, click Continue and follow the on-screen prompts.

You can enter your Email or Apple ID.

At the bottom, there's a Continue button.

Note: If you’re using an Apple device to activate, you’re not required to sign in with your Apple ID.

If you already have Apple TV+:

Visit this link here. This link will also be sent to your Xfinity email address once you purchase your Streaming App offer.
Note: You'll need to be logged in to your Xfinity account.
If you have an Apple TV+ subscription from Apple, use the same Apple ID and Apple will transition your billing over.
If you already have an Apple TV+ subscription with another provider or Apple One, manage your account with the service provider to avoid duplicate subscriptions.
Click Activate Apple TV+.

The header should say, "Activate your Apple TV+ service today". Below, there's a button that says, "Activate Apple TV+".

You’ll be re-directed to Apple TV+’s activation page.
Click Continue.

The next header should say, "You have Apple TV+ with your Xfinity plan". At the bottom, there's a Continue button.

Enter your existing email address or Apple ID. Then, click Continue and follow the on-screen prompts.
You can enter your Email or Apple ID. At the bottom, there's a Continue button.