Where can i find my submitted articles/tips which are pending?
To see status of your submitted articles/tips, GoTo "MyArticles" and see their current state. If it is not published, it will be mentioned there.
What is the maximum days for actions (approve or reject)?
There is no time bound action. It might happen in few minutes or few days. It depends on the number of approvals your article/tip get from few people.
In case you still have some doubts about your tip to be published, post it here: CP Sits Bugs & Suggestons
], admins will reply back.