I need a little help with eBay?

[Juice]

So, I bidded on a item on eBay not to long ago and won, I sent the money and noticed my item has yet to be shipped. I paid on the 8th of November and it has been 4 days with my item not shipped yet, I might just be over-reacting when I think I might not get my item; and want to know how long I should wait? I have never had an item not shipped after I sent my money and need a little help on how I would go about getting my money back if I don't get my item, and I have tried to contact the seller asking when he'd ship it or if there's anything going on but no reply.

So, any idea's on what I should do and how I should go about this? :<