If you are late by a few minutes, you can join the tour. Use our emergency contact number 07803067544. If you are delayed by more than 15 minutes it won’t be possible for you to join the tour as you will have missed too much of the tour content. Tickets are non-refundable, however they are valid for 6 months ,meaning you can easily use them again for a different tour. All we ask is you contact us a day or two prior to let us keep the space free.