Great deal if cash back works!
£ 30.64 a month with T-mobile for 18 months
13 Months 1/2 Price by redemption from buymobilephones.net direct into your bank account, which works out as £19.58 a month
Though the listed image displays offer ends in 2 days, the deal description doesn't mention it...
Unlimited Internet can be switched to Unilimited Text, or other choices like unlimited calls to other T-mobile owner or to UK landlines.