Just popped up on my Trip Advisor app today. details below. Sounds good
Book your hotel between 15 August 2016 and 5 September 2016(minimum £150 spend before taxes and fees) on TripAdvisor.co.uk using a valid UK address. Be sure to complete your stay and submit your review by 15 October 2016. Once your review is published and we've confirmed your stay, we'll email you the code worth £20 to use on Amazon.co.uk. One Amazon.co.uk Gift Card per person.