More detail would help.
Did you open a case to return an item because you were not happy with it?
Then, did the seller offer a partial refund?
Did you accept the refund and close the case?
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)