[mothered]

What's the exact weight of the shoes?  If they're extremely light and register a minimal difference In weight, you may get away with It.

Alternatively, tape the package with a length consistent with that of the shoes, take a photo and send It to them advising that's how you received It. This gives the Impression that the package was tampering with during consignment, hence the shoes were stolen.

Thanks a lot for the fast reply, it's highly appreciated.
I will try my best when my package arrives next week.

Once again, thanks a lot for your help, it's appreciated!

You're welcome.

When further developments come to hand and you get a moment, please reply with the latest.