"30 day Broadband and Talk Satisfaction Guarantee: You can cancel your Sky Broadband and Talk services at any time within the first 30 days of all your services being activated. You'll receive a pro-rata refund for any subscription you've paid but not any set-up charges or non-inclusive call charges. Your statutory rights are not affected. Guarantee does not apply to Sky TV or existing customers changing their current packages."
via 2x20CN, moving one to SKY Unlimited