on 07-10-2016 06:51 PM
How do you know the seller has not posted your item?
Some sellers do not mark items as posted at all....the first you know is when it arrives.
If you have allowed sufficient time for it to arrive taking into account that the ebay delivery dates are just estimates and not usually very accurate then you should contact the seller.
If the seller is unhelpful you can open a paypal dispute and get your money back.