Quick answer. Silence unknown callers, block the number, and use the carrier's spam filter. Do not call back a missed + international code you do not know.
Callback-to-confirm scams start with a missed call.
MarketPalace Guide Center writes this as a solution walkthrough — the order we would use if we were in the room with you. We name the next click, then what to do if that click fails. We do not sell the TV, the kettle, or the plane ticket.
If a menu name on your set or phone does not match, use the closest wording and email hello@marketpalace.shop. We correct live pages when the path has moved.
What you need
- Phone app
In this guide
1. iPhone: Settings → Phone → Silence Unknown Callers
Known contacts still ring.
2. Android: Phone app → Settings → Caller ID and spam
Turn on filter and reported-spam blocking.
3. Block a repeat number from the recents list
It is not enough alone — they change numbers.
4. If a 'bank' called, hang up and dial the number on your card
Never use the number they just rang from.
If it still fails
- This is practical phone hygiene, not legal advice.
When you are done, browse more in Phone & Apps or search the Guide Center for the next job on your list. A neighbour problem — a remote, a bill, a suitcase — has its own walkthrough.
Common questions
Will I miss deliveries?
Some couriers show as unknown. Check the app instead of answering every withheld number.
