We booked a holiday letting which accommodates 11 before the rule of 6 was introduced. The owners know there will be 10 of us as we had to tell them at the time of booking. We haven't been in touch with them yet as we were hoping for a u turn on under 12s to align with Scotland and Wales but now that looks unlikely. Just wondering what our legal position would be in terms of the rental fee? We can't legally all go so would need to cancel but would the owners be able to argue that since 6 of us could go they don't have to give us a refund, even though we said 10 at time of booking? Thanks