Have had my CareCredit for about a year now. Opened it when I was right around 700 or just a little under. SL was 5k and raised to 6k the same day I opened it. Seeing the various posts about CLI's on it and some of them being SP's thought maybe I'd bump up the CL on this one a little. Well I can tell you don't use the automated phone system if you're hoping for a SP CLI. I've never seen chat on my account so couldn't go that route. Used the automated system and asked for 10k. It actually came back with a new CL of 12k total so 2k more than I asked for but almost immediately got an alert from CreditWise of a TU activity and sure enought a new HP from Sync. I'm okay with that though in exchange for a 6k bump on this one.
Huge congrats on the CLI!
I'm sorry it was a HP... I was hoping that the recent SP trend would continue. 
If you have a moment, chime in over on the thread in the main 'Credit Cards' forum to let folks there know your request resulted in a HP. http://ficoforums.myfico.com/t5/Credit-Cards/Care-Credit-Doing-SP-CLIs-Now/m-p/4777965#M1390336
I to decided to try the chat option this morning. I have had the accoun t since July SL $8,000 was always aphrehensive of calling of using the robo lady or even calling in to the CS to request an increase due to all the hp reports. So did a chat with a rep and was suprisingly bumped up to $10,000! I will take that and revisit them in another six months or so. 