I’m currently travelling overseas in a country where the economy is largely cash driven and so haven’t had much need for my credit card (though obviously do need it for booking internal flights and the occasional splurge on a higher end hotel). I last used it in person on 28th December.
And now for the life of me I cannot find it. I’ve spent the last couple of hours going through all my luggage, including checking linings of bags, pockets, bags for masks & medication, inside passport and books and under the felt lining of the safe. (I tried shifting the safe in case I had mindlessly shoved it adjacent to the safe but that triggered an alarm 
).
I know no one on Mumsnet can psychically know where my credit card is - but thought I would try asking as I’ve occasionally seen threads like this which trigger the OP into finding the lost item