Be careful with POS transactions when purchasing ski passes. They overcharged us by €40, and when we went the next day to ask for a refund with receipts in hand, they rudely told us they had no cash left and that we couldn't prove we hadn't paid anything else with the transaction. It's a shame they wouldn't offer anything for that amount. A similar mistake, but for a smaller amount, happened last season, but given the price, we didn't complain.
It's unfortunate because the resort is very beautiful, but these incidents are truly unpleasant.