disney plus through verizon to replace annual subscription

See here: https://www.verizon.com/support/disney-faqs/

You don't need to cancel the subscription before hand.

Follow the steps in Verizon's FAQ to add Dinsey+ to your verizon account, and then yes, log in with those credentials to the Disney+ App on your devices. You will switch your subscription information during the enrollment process in Verizon's App.

1. Cancel your existing subscription.
2. Sign in to the app with your Verizon credentials.

Sorry, missed this part in the FAQ.

https://www.verizon.com/support/disney-faqs/#current-1

According to the Verizon FAQ:

If your existing Disney+ subscription was purchased through other third

parties – This promotional offer won’t automatically replace that

subscription. After you enroll and set up your account, you’ll get an

email with information about how to manage your existing subscription.

You’ll still be billed for the existing subscription until you follow

the email instructions.

The instructions probably describe how to cancel them directly on the platform you are using. In this case Apple, so yeah, you'll need to go and cancel them through Apple, and then make sure you are logged in with the Verizon credentials to the Dinsey+ app, rather than your Apple ID.

See here to cancel your Disney+ subscription on your Apple ID: See or cancel your subscriptions - Apple Support