Some have stated that Chase will only offer lower APR's if one applies for a new product. If you go that route Chase is pretty good about transferring limits among cards.
Carrying a balance would probably negate any of the rewards even if your APR was lower.
chasefreedomslave wrote:I've never missed a payment and my credit score is somewhere around 740 yet they have never lowered it.
While that helps has your credit improved since you applied? It's not just a matter of your score. How has your utilization been? Derogs? Other items in your credit?