This is one of my oldest accts.-started out with Chase during my rebuild in Aug. 2013. I very seldom have used it if any in the last 1.5 years because of the high interest rate. Therefore they reduced my line to $1024 a few mos. ago. I created a new password for my acct. today and logged it and requested a CLI. But instead of the $4k I had before the CLD, I only asked for $2.5K because I felt that was sufficient for the usage---and they gave me back the original $4K! So maybe if you've had a CLD to $1024 for non-usage recently...it's possible to get your original CL restored.
BUSINESS 
@pizza1 wrote:
Nice! Thats actually cool that they gave it back to you!
Yes it was! I didn't actually need the entire $4K back, but I'm glad they gave it to me because that put my total TLs at $370K and some change--Only $130K needed now to reach my ultimate goal of $ 1/2 million.