Am I right to be suspicious??

Last night, during an insomnia doom scroll, I spotted what I thought was a cheap bag. It could go nicely with an outfit I have, so I bought it without a second thought since it was cheap and in good condition. I didn’t see the brand name, or notice that the seller has no reviews until later.

After I paid for it, I went down to similar items, just for a nosy, and found a listing for the same photo of the same bag, but of a much higher price, from a different account. This is where I noticed I’d apparently bought a Mulberry bag for a fiver! 🤨

A few minutes later, a postage receipt was sent. I am right to find this dodgy, aren’t I?

What sort of thing could happen here? I don’t have much experience on Vinted, so unsure what the motive could be. Any help would be much appreciated.