Finally happened to me
I opened up the inpost locker and i ordered a whole tracksuit but the package was very clearly a book.
I didnt even close the locker i sent photos to the seller and asked did she send it to me accidentally like this and she said no i sent it in a grey mailer. But this item was in a pink one. No worries I call inpost he checks some things and bc the front and back label match he said its not a mix up from their end the seller must have put the wrong item in the wrong locker. I contact vinted immediately and they ask for all the pics etc. I provide. Dont hear back but in the sale chat it says order cancelled and refunded and the seller messages me to apologise for the mix up. I open the book and there is a receipt in there with a name that matched her username.
Baffles me bc surely if she sent two things on the same day and one was a square book in a pink mailer but mine was a tracksuit in a grey mailer you'd know it was your mistake.
So now I dunno if she was trying to be dodgy and hope I wouldn't make a claim or what but the whole situation felt stupid.
Im glad from reading the endless posts in this sub about this situation I was able to fix it immediately and got my money back.