It depends on what starts the validity clock. If a plan counts from the first connection at your destination, you can buy well in advance and install early with no downside. If it counts from the purchase date, buying too early simply burns days. That line appears on the plan page and differs between suppliers, so read it before choosing a purchase date. What we would always avoid is leaving the purchase until the airport, since installing needs an internet connection.

Not necessarily. The lowest price usually comes with a small allowance or a short validity, which can force a second purchase mid-trip and cost more in total. A more honest comparison looks at price per gigabyte alongside validity and the sharing terms, then picks the plan that covers the trip in one go. Cheapest only means anything when the plan actually does what the trip requires.

Stop before scanning anything repeatedly — an installation code is generally single-use. Then check whether the listing was ours or a partner offer. For a partner offer, you deal with that provider under their terms. If you bought from us, message us on LINE or by email with your order reference and the phone model. What can be done depends on the supplier's terms and on whether the profile has already been activated, so we check case by case rather than promising an outcome in advance.

Yes, on a phone that can run two lines at once: the home SIM stays in place while the eSIM handles data only. Set the eSIM as the data line and switch the home SIM's data roaming off so nothing bills you unintentionally. What it costs to receive a call abroad is between you and your home operator, so check their rates before travelling — and note that how many lines can be active at once varies by model.

It depends on the shape of the trip. If you move between countries often and stay only briefly in each, a regional plan saves switching and reduces the chance of losing service at a border. If one country dominates the itinerary with short hops elsewhere, a country plan for the main stop usually gives better value per gigabyte. Either way, read the actual country list on a regional plan — a regional name does not guarantee every country in that region is included.