I shipped out his item to the address he requested. However, the location he wanted it sent was a warehouse. The post office could not drop it off, he was told to pick it up. He refused and told me it was my responsibility to have it delivered. However, if the post office can't delivered to the warehouse, it is his responsibility to have it sent to a location that can accept delivers.
He then lied about the item and said the belt was broken. This item was 100% brand new and inspected before being shipped. He never even told me about the belt and just threatened to leave me negative feedback.