I was well over my 181 day mark with AMEX (I was previously sitting on any potential CL increases as I considered a Delta Reserve card. Which I ultimately decided against and I upgraded my Citi AAdvantage to Executive). On 10/15/20, I requested an increase and was granted the $5,000 I requested. This is my main grocery and gas driver (until I hit the monthly 30 transactions 50% points bonus anyway). I spend anywhere from $600 - $925 monthly.
$25,000 ---> $30,000
Congrats on your Amex love