Just got my BT bill and see that of my £1.73(!) quarterly calls charge, £1.30 of it is for an 'error' call when someone here (wife/son not owning up of course) mistakenly dialled 11866, and in the SIX seconds before realising was hit with £1.30!! (£13 an hour!!)
Take care with 18866 dialup. But it still saves me a fortune.
Considering 18185, but will wait till New Year to see if rates follow 18866 first, bit of a hassle re-programming all the house phones.
Merry Xmas to all.