An alert has been issued by money specialists, as an important document is expected to expire for millions of people in the UK this year. It is raising concerns that large numbers of British travellers could be caught out just as the holiday season reaches its peak. More than 1.2 million UK Global Health Insurance Cards (GHICs) are due to expire in 2026. Nearly 800,000 are expected to run out during the peak summer holiday months of July to September, according to new Freedom of Information