If you are within 30 days of the item last estimated date for delivery the seller cannot refuse refunding you if you have opened a case for item not as described citing... Item Does Not Match Description or Photos.
Once the case has been opened the seller has 3 days to refund you or send a prepaid postage label for the return of the item. If neither happen then on day 4 escalate the case, eBay step in and force the refund.
Do not close the case early on any excuse or promise the seller may make, and do not forget to escalate.
@osthakan-0