cats63, I hate to be a broken record here, but I don't fully understand your question, again.
You are looking to lower the rate on the Citi card you have not yet received, that same card that you will pay 0% on for 21 months? You want a CL increase on that card? You are upset that they will not allow a balance transfer to that new card in the amount that you feel you need now, to lower the 11.99 interest on the Chase account? Is this correct?
In a previous post, you asked about Citi balance transfers. If your son has Citi BT capabilities on his new card, he can write a check off of his account to pay some of that debt he incurred on your Chase card.
In the meantime, with a 61% utilization, IMO don't rock the boat. Not trying to be mean here, it's not meant that way. But the way Citi lenders may look at it, it's like "she can't pay down what she's got now, and she wants us to bail her out? No way!"
Do what you can, with your son's help, too, to lower that Chase amount at the 11.99%. Keep on top of it, and in 21 months when the Citi 0% promo rate expires, you won't have to worry at all about the interest rate, because you'll have not only cleared all debt (Chase and Citi), but you'll be PIF, every month!
Keep a good thought. It takes time and patience. I have confidence in you, you'll do it, for sure! 
Uborrow-Upay
Edit to answer the questions (stupid me). The APR is high, but so is your reported utilization. And yes, your utilization may be a big factor in that rate. They may (may) lower that rate in the future, but I wouldn't bank on it.
@Uborrow-Upay wrote:cats63, I hate to be a broken record here, but I don't fully understand your question, again.
You are looking to lower the rate on the Citi card you have not yet received, that same card that you will pay 0% on for 21 months? You are upset that they will not allow a balance transfer to that new card in the amount that you feel you need now, to lower the 11.99 interest on the Chase account? Is this correct?
In a previous post, you asked about Citi balance transfers. If your son has Citi BT capabilities on his new card, he can write a check off of his account to pay some of that debt he incurred on your Chase card.
In the meantime, with a 61% utilization, IMO don't rock the boat. Not trying to be mean here, it's not meant that way. But the way Citi lenders may look at it, it's like "she can't pay down what she's got now, and she wants us to bail her out? No way!"
Do what you can, with your son's help, too, to lower that Chase amount at the 11.99%. Keep on top of it, and in 21 months when the Citi 0% promo rate expires, you won't have to worry at all about the interest rate, because you'll have not only cleared all debt (Chase and Citi), but you'll be PIF, every month!
Keep a good thought. It takes time and patience. I have confidence in you, you'll do it, for sure!
Uborrow-Upay
Excellent Advice !
See my edited post, above...
Sometimes, I don't write everything I mean to say either...
Love ya, cats63!
@Uborrow-Upay wrote:Edit to answer the questions.
The APR is high, but so is your reported utilization.
And yes, your utilization may be a big factor in that rate.
They may (may) lower that rate in the future, but I wouldn't bank on it.
I further agree with your update (edit). I would like to add my 2 cents.
Because of the new consumer "protections" enacted by congress, the "go to" rates have to be somewhat higher since the banks can't raise "permanent" rates on existing balances. Once a card is paid in full, I believe that it might be possible to have the "permanent" rate lowered. Of course as you have said, "I wouldn't bank on it."
