Hi Ruth. We are sorry for the experience your encountered at one of our Osprey chargers. At the start of a charging session, a £45 pre-authorisation payment is taken to ensure your payment card being used has enough funds to charge. If the card payment reader is tapped more than once, another £45 pre-authorisation payment will be taken as the charger will assume you are a new customer. We are sorry this resulted in multiple £45 charges being taken. Rest assured if no charge took place, all of the pre-authorisation amounts will return back to your bank account shortly. We can confirm that if you do use the Osprey app to charge, only 1 £25 pre-authorisation payment is taken in a 48 hour period which eliminates multiple pre-authorisation amounts being taken. We can only apologise for the inconvenience caused. If you experience any issues charging after 1 x £45 pre-authorisation amount has already been taken, we would suggest calling the helpline number on the charger to ensure the charger is working as expected. If you require any further assistance regarding this matter, do e-mail us at: support@ospreycharging.co.uk. Many thanks, Osprey Team.