How long ago did you buy the items?
Have you changed the drop down menu to cover the time period when you purchased?
Were they all from the same seller?
Did you buy on this account, on another account or as a guest?
Have you checked your emails/junk folder for any emails from eBay they were cancelled due to seller issues?
If you need other members to give you help or advice, you need to give us more information (no personal details or naming the seller(s)