How can I switch my premium plan to another site within my Wix account? (including Flash to HTML and vice versa)
To switch your premium plan to another Wix site: Sign in to your Wix account > hover over Subscriptions > click Premium Plans > under the relevant plan, click Transfer > select the new site > click OK.
Note: Make sure to assign your domain to your updated site. After transferring your plan, under Manage Premium, click Domains > next to the relevant domain, click Manage.
Under Domain Connects To, click Change > select the relevant site > click Save.