Black & gold ball gown

I bought two gowns for my daughters for a wedding they’re in but the one I’m selling is not really a size 4. It’s more like a 5/6. The one my daughter is wearing in the picture is actually a size “2” I got for my 2 year old, but fits my 4 year old even a bit big. The one that’s for sale is completely brand new and hasn’t even been tried on. Amazon seller won’t accept a return or refund me and shipping by itself was $40! So the dress cost about $100 😭 anyways, I bought a new one for my two year old and would like to sell this one since it’s just going to sit there.