I don't have a specific answer to your question about how to handle this, but I'd suggest that it might well be important some day. I finally needed a clear, unambiguous frame number to enter Cuba earlier this year, and I'm glad it was there. It might happen to you--at which point no assurance by any other traveler that it never happened to them will much matter.
Maybe tell the shop you're headed for Egypt (or Cuba). And if you paid by credit card, immediately file with the issuing bank.
I'll be interested in hearing how this goes.
Mark
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