Yeah but we'll try and keep transactions to a minimum because PayPal fees and so on. Therefore I'll cover the balance and then you guys can fire me £150 each in bulk or occasional parts.
From experience, they'll take card details (I'll most likely be the candidate for that for being the oldest (was the case last time)) and they will then only charge if anything is broken after our stay, they don't actually take any money from the account. (If that makes sense)