How do you ask a ebay seller for a partial refund

A question about : How do you ask a ebay seller for a partial refund

I've had to contact an ebay seller about an item I bought from them and they told me to send it back for a full refund but with the price of postage I think I can repair it cheaper. So is there a way I can ask for a partial refund.

Best answers:

• Sellers are increasingly aware of buyers claiming that the item sold to them has a fault and that they only need a refund of Јx to fix it.
  Consequently, a standard seller response is now "return the item". This reply tends to focus the mind of the purchaser on whether the item needs repair or not....