Thinking of buying a refurbished C5 65" OLED from Currys

Does anyone have any experience buying refurbished OLED TVs from Currys?

If it's an ex-display model, I'm probably not interested because of the amount of screen usage. However, if it's a customer return or a repaired unit with relatively low screen time and a 12-month warranty, I'm definitely tempted.

My budget is pretty tight this month, so saving around £300 on a low-risk purchase is appealing. Has anyone gone down this route before? Are there any risks I should be aware of, particularly with OLEDs? It's a C5 65" OLED and when messaging the "seller" was pretty responsive and offered Saturday delivery for free. https://www.ebay.co.uk/itm/358629983910