Unfortunately, this deal is no longer valid
Posted 9th Oct
New customers only.
£70 Cashback also noted as part of the deal - so maybe deal price is actually £313.82!
Seems to be exclusive through link via Uswitch:
If you are able to outlay Line Rental upfront (£197.88) with 1st month (£4) = first payment of £201.88, this brings a saving to this latest £22.99 a month deal of £30, from £413.82 down to £383.82.
Note: Line rental increases to £18.99 a month after 12 months, i.e. months 13-18 back up to £22.99.
Slightly better than below previously posted deal, and idea developed off other suggestions around Line Rental saver discussed in the below: