Wiki
Plain-language guides to points, cards, credit, banking, eSIM and travel
Short, sourced explainers you can read in a few minutes. Each one names where its facts come from and when we last checked them.
41 guides across 8 topics
Browse by topic
- Rewards basicsHow rewards, interest and statements actually work.5 guides
- Credit cardsSign-up bonuses, annual fees, issuer rules and the fine print.6 guides
- Points & milesAirline, hotel and bank points: how they are earned, valued and kept.4 guides
- Credit & your rightsScores, reports, freezes, disputes and the laws behind them.6 guides
- Banking & paymentsAccounts, IBANs, cross-border transfers and virtual cards.6 guides
- eSIM & connectivityStaying online abroad without surprise bills.4 guides
- TravelPaying, insuring and moving across borders.5 guides
- SecurityDisputes, scams and keeping your accounts safe.5 guides
Guides labelled “payments”
- Credit cardsWhat happens when you tap your card: issuer, network and merchantFollow one purchase from the till to your statement, meet the five parties behind it, and learn why a charge shows as pending before it settles.3 min readBeginner
- TravelPaying abroad: currency, fees and a backup planHow to choose the currency at the till, what to look for in your card's costs, and how to carry a backup so one declined card does not end your trip.4 min readBeginner
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