User Activity

Is it OK, within Ebay policies to end a number of fixed price listings before their end date in order to take advantage of an Ebay promotion giving you free time, let's say another 30 days?
I accidently listed a number of auction listings that are duplicates. How do I delete these so that they do not get listed when the original item sells, because in most cases I have only one of the item?
Buyer took the buy it now option then I sent him an invoice adding the shipping cost that he did not enquire about. The shipping cost was appropriate.Now he sends me a note that he is not going to pay.How do I handle this? Thanks, Bob
If you are selling on ebay and a bid comes in from a country that you do not ship to, what happens?
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