This all depeends what the seller had on their listing and which reason you made for the return.
If they had a No Returns policy, and you opened a case for ' Does Not Fit', the seller can close this and offer no refund. If the item was misdescribed, a case for Item Does not Match Description or Photos would have affected a refund.
Cases would close also, if the claim is put in after 30 days from purchase.
Unfortunately, another case for this item cannot be opened with eBay.