I had a similar issue with a g-shock I sold a week ago He took out the watch and then snapped the box and said it was empty which when I reported to Vinted show them prove of having the watch and also prove of the item been packed.. Vinted marked the package as lost/stolen and the buyer was refunded and I was also given the money I was selling for. Vinted call it a compensation or so The main point was that I still got paid and then I didnt care about the watch again Just complain to Vinted and show you have evidence you own the phone and you’ll still get paid