If you used the link on their website to book it (through the link you sent me) it is very clear that transfers are not included when you are going through their booking process.
You can add transfers to your trip to make getting around easier.
Click the price to add it to your itinerary.
3 x Scheduled shared transfer (see more info) (for 3 passengers) £579.87
1 x Ski Taxi (for 1-4 passengers) £601.47
If you don't require any transfers you can click the continue button to book your itinerary.
If it was different at the time of booking or you booked over the phone and nothing was said on the matter, I would make a complaint.