The comments made by John Redwood, the Conservative MP for Wokingham, on 16 September 2018 in an article at https://johnredwoodsdiary.com/2018/09/16/project-fear-caricatures-itself/.
This week the main mobile companies confirmed they will not be imposing new roaming charges when we leave! There is enough competition in the market to keep prices down. A company like Vodafone anyway offers free roaming for non EU countries like Norway and Turkey as well as Iceland, a country which cancelled its application to join the EU. It is always wise to check your contract, as the so called EU free roaming may well have a usage limit.