I recently booked afternoon tea and The Chelsea Teapot. Initially they took the name and number of persons in our party, but yesterday received an e-mail stating that they require a credit card to hold the reservation. When I replied that I have never been asked to do this for a dining reservation they informed me that this was standard practice in London. I cancelled the reservation and booked at the Woseley and they did not ask for a credit card. Could anyone comment on whether this is standard practice? Thank you.