disc was fitted in accordance with direction arrow
Have just looked closer at the picture, and so it was!
They did change the arrows on later rotors to point the other way I recall…
Really hope you heal quickly. I for one, even though I can’t stand the “where there’s blame there’s a claim” culture would be putting in a polite email to them, followed up by a call to a solicitor, to at least find out where you stand on this. “Not fit for purpose” springs to mind, but seeing as we know they changed the design after the rotor that you bought cos they found they had problems, but did not recall the old ones knowing them to be defective, you have reasonable grounds to expect some compensation IMO.
P.S. Did you ever sell those Pro-Lite wheels you had in the classifieds a couple of months back? I sent you an email a while ago, but no response…