DSK wrote in
:

Why not send them an email, or snail mail cancelling and then just
stop paying. Assuming you have it on credit card, just tell the
credit card company they are no longer authorized to charge you. The
credit card company has to listen you.


Actually, they don't. Read your credit card agreement very
carefully with regard to contractual obligations on
cancels/returns.

Agree, except, it's not a cancellation or return. It's withdrawing
permission for a future charge for a service not yet received. No
permission, no charge allowed.