We were scammed, received a Whatsapp message asking us to confirm our reservation by confirming our credit card details. The message had our itinerary number, corrects dates etc. Multiple amounts of hundreds of pounds were taken. I phoned the Axiom, who already knew about this scam but had not warned any guests. I raised this on arrival, receptionist said data must have been leaked by Expedia (we didn't use Expedia) and denied any responsibility. Hotel was in a good location for us, close to Battersea park and power station, but a bit scruffy, the window didn't close properly and someone must have been smoking on our floor.