£75 voucher on Sky Broadband Unlimited just pay line rental in first year

Sky has changed its offer on its Sky Broadband Unlimited (ADSL2+ based)
service, the M&S voucher has increased in value from £50 to £75 and is
available for new customers joining Sky Broadband until 24th March 2016.

The contract length is 12 months and in the first year there is just voice
line rental at £17.40 per month to pay, the broadband element is free. After 12
months if you stay with Sky the broadband price is £10 per month.

The line rental does not include any free inclusive calls, with an evening
and weekend call bundle available for £4 per month, £8 buys you an anytime call
bundle.

A reminder for those who have had Sky Broadband for some time to double
check their bills, after the changes to legacy line rental packages where Sky
dropped the free calls as part of the line rental bundle and automatically
enrolled people into the Evening and Weekend bundle at £4 per month.