Well that was a result. We pay for a landline phone from Virgin Media. We have been paying £27 a month for a long time.
I decided to look at alternatives, and Direct Save Telecom came up with £19.50.
So I phoned Virgin Media, quoted the alternative prices to them - and with zero negotiation the slashed the charges by £10 to £17 a month. And because of where we are in the billing cycle, they will refund £9.60 and only charge us £7.40 for this month.
No idea why I haven't done this years ago!