2013-02-15 12:58 pm EST
Thank you for your question. We can change your primary domain to (websiteTop.com), but it requires a written request. Here is a link to our article on how to change your primary domain.
After your have changed the primary domain, you can add (websiteC.com) as an Addon domain in the cPanel.
If you have any further questions, feel free to post them below, or contact live Tech Support.
They are available 24/7 via:
Phone: 877-595-4482 x2
Chat (there is a link on the top right).
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