My one and only card is a Discover more which was opened 3/2010.
I called six months after opening the card for a CLI and the CSR asked some general questions and said she can give a 2K bump without doing a hard pull. A few months ago I called again and went through the automated phone system, requested 2K more and was granted with no hard and no conversation with a real person. Until recently finding this forum and educating myself I had used the card for every purchase I could for cash back. I'm sure my utilization was off the charts, but it must not have effected me requesting CLI with them. Just a FYI
Discover More -- $7,000 l Chase Sapphire Preferred -- $8,500