Correct me if I'm wrong - but you got your money refunded AND received the shirt.

I won an item on ebay at the end of April. After I had paid I noticed that it was listing my old address as the shipping address. I immediately contacted the seller to to find out if it already been sent and to give the right address - no reply. A few days later I emailed again - no reply. Another few days, I emailed again. This time they replied telling me that, no they hadn't sent it and thanks for the correct address, it will be sent out asap. Another two weeks or so went by, nothing. So I emailed seller again. This time they replied by saying that the item had been sent back because it had gone to the wrong address. I emailed back saying I thought you hadn't sent it. By this time, nearly a month had gone by so I opened a case, which I won and got my money back. A week later I received the shirt. Now the seller keeps emailing me all the time saying they know I received the shirt and to give them the money back. I've reported them to ebay but nothing seems to have happened and they have emailed me again today demanding I pay the money, calling me a thief and a liar. Help!!!!