Best you read up on the Business board here on the discussion board Business Seller Board - UK eBay Community
Regardless of fees etc,you can upgrade to a business acount following these instructions below so you comply with ebay policies.
Go to Account settings in My eBay.
Select Personal information.
Select Edit next to Account type. You may be asked to sign in again.
Select Confirm to upgrade to a Business account.
Specify whether you operate your business as a legal entity or as a sole proprietor and select Continue.
On the following page, enter your business information such as name, contact information, and returns policy. Then select Save.
You can keep your existing listings as a private seller
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