Wix domain purchases are separate from Premium or Studio site plans. Domain subscriptions are non-refundable and do not include a 14 day money-back guarantee or trial period.
If you no longer want to keep the domain you purchased, you can cancel your subscription by turning off auto renew. When you turn off auto renew, your domain expires at the end of the current subscription period. Learn more about canceling a Wix domain.
This article is credited to the Wix team - https://support.wix.com/ and we thank them for that!