Doesn't honour bookings on there webpage

<p>I made a booking through there webpage with a special discount. All the Desember holidays was blocked for the special except the one I booked, the code to the discount worked and I booked and paid. Then 2 weeks later they say it was a fault and I was not suppouse te be able to book that with the discount code and they just want to cancel my booking. I made several bookings over the years and have bookings for middel August and now they have blocked my account. I would stay clear for them in the future. </p>