Vinted complaint: Blocked Account for no reason

I’m sending again the complaint wishing that I reach someone can analyze and understand my problem and make fair judgment. I purchased 3 set of Tommy Hilfiger Boxers on Vinted (seller: marylebrija ). Once I request the seller to return because the quality is not like expected and described. She/He accept but asked me to pay the return shipment. I refused and I decide to sell them.

Few days later I got a message from vinted that I’m permanently blocked, and this is final decision.
I sent several emails to explain but I was always getting same message; like auto replay, that this is final decision and not more discussion even they refused to explain any thing for me while same boxers are still sold by same seller on vinted. I opened a new account and I report the item as fake; but Vinted sent me that it is authentic and original which is great for me. I sent this message as verification to un-block me as it proof that this item is fake; but instead they blocked both accounts. Today I checked and I found that seller is blocked after 2 months from blocking me. What ever was the product in reality, I bought it from vinted and vinted for same said it is authentic and the insisted 2 times on that it is real item. I attached photos for that.

I reality; I’m using this account since 2-3 year and I’m good buyer and you can review my history; I’ve never sold fake item or bought them and always have very good review. I’m spending every year good amount of my shopping on vinted; and I have list of friend, trusted seller and favorite items. So; again, I’m asking vinted to return and activate my account because I’m honestly speaking; not going to open new one and spend a lot of time to search and favorite items i already favorited and start building relation again with seller. I’m looking for few things in summer from my favorite items and I can’t search them again as I searched for that in thousands of items.