Vinted complaint: Counterfeit product

I bought my daughter a coat off vinted it arrived yesterday the seller kept asking me if I had received it was it all ok etc and I accidentally pressed the all ok button when the chat was on my screen before I had had chance to look over the coat.

After looking at the coat I realised it was a counterfeit coat and it was advertised as genuine I even asked the seller before I bought the coat if it was genuine which she replied yes it was. I am appalled at the customer service if I had back from vinted saying nothing they can do to help and to communicate with the seller the seller wants me to send the coat back and she will then refund me which I am not going to do if someone can sell me a counterfeit coat when saying it was genuine she is not going to refund me.

I paid £87 for this coat for my daughter it was also advertised as small and on the label it says medium it doesn’t even fit my daughter. She also stated worn a couple off times when I asked her about the coat being a fake she told me her sister bought it years ago from depop and gave it to her for Christmas 2 years ago so yet another lie on her advertisement. I am not happy at all I have spent that money on a fake coat and vinted are doing nothing about it. I have attached the sellers conversation between me and her.