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metamourge879412dPut your SD card out and restart.
rooter32812dIt's probably just your daughter with a new phone number asking you to send some money because her laptop is broken
You saved the numbers on your phone and it forgot them (internal sd)
You restored (or updated) your phone and it didn’t sync the contacts yet (from cloud)
At least that’s the use cases I’m aware of
amrit202252312dHave you visited other country or changed country, that could mess prefix for country code and resulting in number not matching with saved contact. Happened with saved contacts for WhatsApp when changed country.