Samsung customer care is horrible

So I pre ordered the buds 3 pro and when I received them the left bud never worked. I returned them and they refunded the whole order because they couldn't be fixed. I never sent my trade in device for this reason and they're still charging me 100.00 .. Am I in the wrong.

So I pre ordered the buds 3 pro and when I received them the left bud never worked. I returned them and they refunded the whole order because they couldn't be fixed. I never sent my trade in device for this reason and they're still charging me 100.00 .. Am I in the wrong.