With US Bank, you may want to try a recon with a manual review. US Bank's automated system does not like something in my profile. But when it goes to a manual review, it is approved. When I was approved (after a manual review) for the Altitude Reserve my sl was $5k. I was able to recon to $10k the day of the approval.
From what I have read, recons with Citi, seem not to work. They are known for low sl.
With US Bank, you can call for a recon of your CL. If you do it within 30 days, they wont do another pull.
Definitely a YMMV situation. I was approved for $1000 in January. Hard Pull #1. Reconned limit a few days after approval and got $3000. Hard Pull #2.
Congrats on the approvals! Sorry for the low limits. Hopefully they will grow for you!