Hmmm this is wild. As far as I know you can return a package to them even after unboxing it. I just started shopping there so I might be dealing with refined services. But the other day I went to pick up a parcel when someone told them he didn't like what was brought so they would have to return it and they said ok.
It's sad that you experienced this but i hope they don't do that anymore ooo.
I just hope so