eBay

My friend told me to turn on the "pay immediately" option when listing my items for sale to avoid all the time wasters who are buying my items then not paying. For some reason the option is not there in my payment preferences. I really need to access...

I am currently the leading bidder on a dvd. HOwever I just noticed my max bid is listed as $700 instead of $7.00!! How can I change this max bid? I am concerned I will end up paying more for it than I want to.