So I've sold an Apple TV 4K and Television to a member on Geekzone, I've received the money and I was advised that they would organise someone to pick it up. It has been a month since I've heard from them and I've tried messaging them but there has been no reply and and in the messaging section it appears that they haven't read the message I've sent. My concern is that I've received his money, I've got the items for pick up and nothing has happened - so what do I do?