The government has legislated to protect consumers from unexpected charges if there is no Brexit deal. This is to ensure that obligations on mobile operators to apply a financial limit on mobile data usage while abroad is retained in UK law. The limit has been set at £45 per monthly billing period. This means you cannot continue to use mobile data services when roaming unless you actively chose to continue spending. The government has also legislated to continue to ensure that consumers receive alerts when they are at 80% and 100% data usage.