Can a hotel charge an additional payment for a bad review on Tripadvisor? It would appear that a hotel in Blackpool had terms and conditions attached to its booking form which permitted them to deduct a payment of £100 if the guest wrote a bad review of the hotel on the internet. However, is such a clause enforceable? It would seem to be a disguised form of penalty? Is the payment of the £100 a genuine pre-estimate of loss, assuming that by writing a negative review you have breached the terms and conditions of the booking. How could you estimate what the actual loss is of a negative review? If the purpose of the clause is to hold someone "in terrorem" to prevent them writing a negative review then the clause is probably not a genuine pre-estimate of damage and could well be an unenforceable penalty.