@favotites,
Note: you're not contacting eBay by posting on these boards. They are public forums on which any eBay member can post, and the responders are, like you, fellow eBay members who give voluntary helpful advice and information. (The standard of help is usually well above the type of cut-and-paste help provided by eBay customer service.)
As the other answers have said, you may have been told it was free to list on eBay, but it's not free to sell on eBay. eBay are a business, so you need to make sure you know what costs you will incur when you sell on eBay. That applies to casual sellers as well as to business sellers.
Before you do any further selling on eBay, you should acquaint yourself with seller fees, seller policies, etc. Otherwise, you run the risk of selling at a loss (if you don't take Final Value Fees into account) and/or having eBay take action against your account for an inadvertent policy breach.
Selling fees
Selling - the basics of selling on eBay
Selling - fees & payments (in more detail)
Postage and returns
Dealing with customers
Business policies
eBay policies - in particular, make sure you thoroughly read Listing Policies and Selling Policies. Also, make sure you read through the eBay user agreement.
