@Boolee You will need to call Sky who will be able to add the Whole Home subscription to your account.
If Sky is you mobile provider you can phone them by dialling 150.
If it is not your provider follow this link https://www.sky.com/help/home and scroll down to need more help, click on this and you will see an 0333 phone number to use to call Sky. Unfortunately I cannot include the actual phone number as the forum filters will block it.
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