Misrepresentation….item bought ar fully working but was not..how do I deal with this?

[tressygirl]

Are you still within 30 days of the item's last estimated date for delivery?

Then,  open a case for item not as described in the Resolution Centre.

https://resolutioncentre.ebay.co.uk

Escalate on day 4,  if you are not refunded beforehand.

Do not close the case early on any promise of excuse from the seller,  and do not forget to escalate.