So you have a question? Has something gone very wrong and you don't know what to do? Well, fair enough. Here are the questions that I hear all the time from buyers.

Does eBay have a Customer Service Department I Can Phone?

eBay are notoriously hard to contact, should you ever need to - it sometimes seems like they expect the site to run itself.

It's a heady feeling when you win your first eBay auction: a mixture of happiness and perhaps just a little fear. After all, there seems to be so much to do before you can actually get your item. What do you do next?

The simple answer is: you send payment to the seller, as quickly as possible.

eBay are a little strict about letting you withdraw your bid. They call it a 'bid retraction', and have a stringent set of conditions that you must meet before you are allowed to do it. Here are eBay's three acceptable reasons for withdrawing a bid.

You made a typographical error: This means that you accidentally typed the wrong amount into the bid box, bidding a far higher price than you meant to.

eBay isn't just an auction and a marketplace: often it can feel quite a lot like a game. Like any game, you can get ahead if you think strategically, using your head to outwit the other buyers and get the best price. Here are a few things you can try.

Shop in the Summer.

This is simple, but effective.

You will often find yourself facing the choice of whether to pay a fixed price or keep on bidding. This choice might be presented to you in a single auction, or you might be choosing between different auctions of the different types. So should you use that 'Buy it Now' button or keep on trying to outbid everyone else?

Over the years, eBay has introduced all sorts of different auction types, in an effort to give people more options when they buy and sell their things on eBay. There are many people who don't like the idea that their item might sell for a far lower price than they intend.

E-books are the future and the future is now. The printed word on paper and bound into books used to be the only way information was given and received. They were great, you could take them with you and put them on shelves and they do still exist and will continue to for the foreseeable future but the time of the E-book has arrived.

When you buy something from an eBay seller, you are giving them your money and hoping that you will get something in return. However many guarantees of safety eBay might make to you, nothing is certain: if you just give your money to scammers all the time without doing any checks then the chances are you won't get all of that money back.

That's why you should always check the seller's reputation, or 'feedback rating'.

What does a virus have to do with marketing? Viral marketing describes any strategy that encourages individuals to pass on a marketing message to others, creating the potential for exponential growth in the message's exposure and influence. Like viruses, such strategies take advantage of rapid multiplication to explode the message to thousands and then to millions.

Public health nurses offer sage advice at flu season: stay away from people who cough, wash your hands often, and don't touch your eyes, nose, or mouth.

Your reputation as a buyer (or 'feedback rating') is the most important thing people see when they deal with you on eBay. It is on the basis of this little number that they will decide whether they can trust you or not.

Each time you buy or sell something on eBay, people can leave feedback for you, and you can leave feedback for them.