When booking accommodation, a ski pass, and equipment rental in advance, I prefer to cover my insurance coverage at the same time, so
https://www.globelink.eu/winter-sports-travel-insurance.html may be a reference point for EU and EEA residents under 70. When choosing, it's worth checking compensation for piste closures and the inability to use pre-paid services. I also save booking and ski pass payment confirmations electronically. Do you consider compensation for unused ski passes when choosing a policy?