A few weeks ago I phoned CS about there email telling me "As one of our most loved customers
, you’ll still get an additional discount on your services. From 1st May, this discount will reduce by £0.50 a month", and the charge for having a printed bill. I was told that nothing could be done about that, but I got £3.50 off my charge for not paying by direct debit.
It cheered me up a bit.