Bit of advice please ladies! I never buy clothes preloved or use eBay

but I’ve seen a Self Portrait dress on there which I was planning to buy as a second dress for my wedding this year.
As it’s the Azaelea style (and I’ve seen so many ‘inspired by’ high street versions over the years) i just wondered before I make an offer, do I need to be concerned that it could be a fake? Is this something that anyone has heard of happening? Apologies if this is a stupid question

The seller has very good feedback so probably me just being super cautious..