User Activity

How do I delete messages from my inbox? When I check the desired message and click delete, nothing happens. What's wrong?
I am not getting all of my e-mail notifications for messages which I have received. I have to continually check my page to read new messages. Is anyone else having the same problem?
I have items listed on Ebay.ca that are not showing up on Ebay.com. Aren't they supposed to automatically be on both?
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