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I had my Amex CM for just over a year. I did a request a few weeks ago to take it to 30K, 3x would have been 36K, but I was scared to ask for it all. Got the 7-10 day message, which I knew was because I was not 180 days since my last 3x CLI.
Got an email from them a couple of days ago congratulating me on my year so I tried again, but only asked for 2x, instant approval to 24K. Kicking myself for not trying the 3x, but was a little gun shy and I have not really used it that much since I have other cards at 3%. Not that bummed because at 24K its now my highest limit card and they have bumped my limit 20K since I got it at a 4K SL. All an all Amex has been good to me.
Congrats on your Amex increase!
Congrats on you're CM 2x CLI
Congratulations!!! AMEX is the BEST in my book. This post by you is very reassuring because I just met my 61st+ day on a new AMEX Hilton Aspire card with a low starting credit limit of $4,000 compared to the $11,500 starting cl for their Delta Skymiles Gold card they approved me for on the same day -- weird. They actually approved me for 3 cards in total (AMEX Rose Gold NPSL) on the same night in early July of this year.
So, a couple of days ago I requested a CLI on the AMEX Aspire and requested the $4,000 to $8,000 (didn't want to try the X3), and received the dreaded 7-10 day response. All AMEX cards are paid in full as well, but I have 5 total inquiries on my Experian since July 2019. My gut is telling me it's a denial since I've been approved for a lot of new credit, but hope there aren't any grave implications for requesting. FICOs are all in the solid 700s, but I worry if I tried too soon.
At least your post gives me hope. If I get a denial letter, I will just wait on them for an auto CLI. In past, I've been through a FR and while it was painless, I just don't want to deal with that again.