Just came across this deal which I think is an excellent price, they wanted to put my mums plan up to £27.49 a month, but failed to tell her about this deal, it is an 18 month contract, but considering the line rental is almost this price makes it a no brainer.
What you get:
Your monthly line rental
Unlimited calls to UK landlines at any time, for up to an hour
Inclusive calls to 0845 and 0870 numbers at any time, for up to an hour
Free 1471 Call Return
Inclusive 1571 Call Return if you have the BT Answer 1571 voicemail service
BT Privacy with Caller Display and Anonymous Call Reject for free when you opt-in
You can pay for Home Phone Saver 2019 by any means of payment.