We are sorry to hear that you are having issues placing an order with us. Depending on the message you receive, we recommend that you check with your card issuer to check that you have no problems booking on our website or try again using a different device, however sometimes there are only a limited amount of tickets left, and if you are selecting a number of tickets more than we have left, you may receive the following message: 

Sorry, we were not able to allocate the tickets you requested. Please change your selections.

Please check to ensure that you have not been charged, before rebooking.