Using the voucher code BLACKFRI6S you can save £125 off initial upfront cost. (Pay £100 instead of £225)
Similar to deal posted earlier but with an extra 4gb data for £5 per month.
£31 per month on a Vodafone 4G plan, with unlimited calls and texts and 6GB data.
Here's the deal in full:
iPhone 6S 64GB | 4G | £100 upfront | Unlimited calls and texts | 6GB data | £31pm
Great deal, but please be aware that Vodafone is the only major network who doesn't automatically cap your data. If you go over your 6GB limit you'll be charged £6.50 for every 250MB extra you use. Ensure that you set a data limit in the phone's settings menu to avoid such charges.