Prices for the gîte are very simple: CHF 15 or €15 per person per night.
This amount is used to cover the upkeep of the gîte, the cost of electricity, heating, etc. and the tourist taxe.
On presentation of your reservation, you can buy a PASS Saint-Bernard (CHF 15.- per day) at Orsières station: www.pass-saint-bernard.ch.