The advantage with Data Big Bundles is that they're completely contract-free. When you've topped up, we'll automatically swap your credit for your Bundle, which will last for one month. Top up again to get the same next month. Plus, any data you've not used will roll over. Your shiny SIM pack will include instructions on how to top up. As soon as you have topped up, your SIM will be ready to use,.
For full Pay As You Go Big Bundles terms and conditions, including links to terms for Rolling Plan, Priority, O2 Wi-Fi, EU roaming and O2 Rewards, Promotions and Competition Terms, see o2. Co. Uk/termsandconditions/mobile/big-bundles-terms-and-conditions.