I keep getting this message since i came back from EU trip and have used my phone in the UK
Hello, we haven't seen any UK usage or received any documents confirming your residence in the UK. We'll need them by 16/01/2019 or all subsequent roaming in the EU and selected destinations will be charged from your balance at 3.2p/min, 1p/text and 0.47p/MB. If you've no credit in your account you'll have to top up to use our services. Terms apply. For more info: giff.ly/2qL4iQs Just an FYI, this is the only time you'll get this message.