Events Guarantee Details Credit Card Statement Address? Please use the address you have registered with your card issuer. Contact PLEASE TICK WHERE APPROPRIATE I would like to have copy of the invoice sent to the email address provided above EVENT INFORMATION Please pre-authorise my card now with the following amount as guarantee for the above booking: GBP. (Maximum allowed amount £20,000) I hereby authorise Royal Lancaster London Hotel to charge my credit card with the remaining balance of the above function should the bill not be fully settled by another means of payment within the contracted terms. I have understood and agree to the Terms & Conditions and The Hotel Policy Please note: The authorisation amount entered above will effectively reduce your available credit card limit for 30 days and is automatically released after this period.