Well, in that case if I were you, I would have planned my credit card applications more carefully and less aggressively since I wouldn't want any more dent to my credit due to rejection.

Keep in mind that both CO and Sapphire cards are issued by Chase, and Chase tends to NOT approve new applications when debts and lower credit score is in the picture. Debts really hurts. Citi tends to be less "strict" in terms of multiple accounts, but still you have to consider if your current credit history is good enough to get any new card approved. You may apply for one, two, or even three cards. But if all you can expect or get is rejection, what good would any new application get you? More dent and no bonus.

You should look into creditboards.com to get better advice when you are concerned about your credit, and see what/how you can work on your score.

Good luck!