Just to add that everything you need to know about selling on Ebay, including how Make An Offer works, is in the Seller Centre. The link is at the foot of any page.
You can also add the Ebay ID of anyone who makes an insulting offer to your Blocked Bidders List if you wish. In my experience, from years spent browsing the forums, those who make ridiculous offers and later buy at a higher price often find a 'fault' on receipt, and attempt to bully the seller into a partial refund, one that miraculously matches (or almost matches) the extra amount they didn't want to pay...!
@dez28042611
