I believe this will be correct info, if I understand what you are doing correctly.
Go to Profiles and select Shipping Fill in the information requested at the top of the page. Select your Ship to locations: (I'm assuming you use a Flat Rate for shipping,) so be sure that selection has the tic mark In the Domestic Shipping Service click in the drop box and select Other (see description)
When you do this, in the eBay listing there will be a hotlink at the top of your listing that can be clicked and it takes you bidder to the Shipping, payment box and says something like "Check item description and payment instructions......."
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