Which cards did you sign up for?
How much is the minimum spending for each of the bonus?
How long do you have to meet each's spending limit for the bonus.
Where are you located (Country)?

You may have bit off more than you can chew to start off with, but with more info people may be able to help out. It's a good idea to checkout the stickies and other threads in the Manufacturered Spending & Credit Card forums which are lower down the page under "Miles & Points"