Check your mobile is set up correctly for photo messaging before you leave the UK. Turn off data when you’re not using it. If you don’t turn it off in your mobile phone settings menu, your apps and emails will update in the background and use data, costing you money. Connect to Wi-Fi when it’s available. It’s usually free to use, but you should still check. Some hotels and restaurants do charge for Wi-Fi. Keep your voicemail security code handy. If you miss a call, we’ll send you a text to let you know. You’ll need your voicemail PIN to listen to it.