Booked a week in this country (England) in January in a holiday barn. Wasn’t clear at time of booking that a larger deposit was going to be requested at the end of this month, which is not refundable even in case of cancellation.
I need to cancel for a few reasons.
Thinking of cancelling the card they have on file and ignoring the letters I know they’ll send to my home address 
They’ll want around £250. Is this something they’d pursue vigorously do you think? Anyone any experience of these kinds of things?