Each subscription is tied to a single domain and cannot be changed to a new domain. This is because the historical data and progress you have made on your old domain is no longer valid for the new domain as they have different backlinks, performance indicators, and keyword rankings. Search engines will "see" your website with a new domain as a new page.
Therefore, you must request the cancellation of the subscription with the support team, and request the creation of a new one with the correct domain.
To complete this request, please contact support for assistance.