29-08-2017 11:25 PM
Hi there,
You need the advanced listing tool. When you revise your listing you should see the option top right of the form to change to advanced.
The instructions are on this page, under Responding to offers automatically. If you didn't want the best offer on at all, you can take it off. Ebay have recently decided that its a good idea to stick it on every fixed price listing and you only get the option to take it off on the advanced tool.