Luana Botas, a 43-year-old tourist from Birmingham, encountered a £55 fee at Budapest airport due to Ryanair's stringent baggage size rules. Despite her daughter's case being larger than the allowed dimensions, she was frustrated by the inconsistency in enforcement, as no issues arose on her outbound flight. Ryanair's policy allows children to carry certain types of bags, but the specifics can lead to confusion. Experts emphasize that the terminology used by airlines varies significantly, with terms like 'small bag' or 'priority' lacking standard definitions across carriers. This inconsistency can lead to unexpected charges for travelers. The Civil Aviation Authority advises passengers to thoroughly check their airline's baggage policies to avoid surprises. Additionally, travelers should be cautious of extra charges for services like check-in or seat selection, which can be added during the booking process. To avoid accumulating costs, experts recommend calculating the total journey expenses, including baggage and other fees, before finalizing travel plans.