I've never received an auto CLI and have always been denied when requesting a CLI on my CapOne QS1 card with a $300 limit. I've had the card for two years.
Today I logged in, expecting another denial, but to my surprise- they gave me $100. 😂
Congrats.
Super congrats!!!
NFCU GoRewards Sig ($40,000), NFCU Cash Rewards ($40,000), PenFed Power Cash ($25,000), FNBO Evergreen Visa ($20,000), Bread Financial Rewards Amex ($21,150), PNC Cash Rewards ($18,400), PNC Cashbuilder ($18,700) , One Key Mastercard ($14,000), Citi Double Cash ($11,600), US Bank Cash Plus($10,000), Discover It Cash ($9000), Capital One Quicksilver MC ($9000), TD Cash ($8000), Bank of America. Unlimited Cash Rewards ($7500), Fifth Third Unlimited Cash Back Mastercard ($7500), Wells Fargo Active Cash Sig($7000), Apple Card ($6000), Amex BCE($6000), Amex ED($6600), X1 Card ($5000), PNC Points ($8000), Amex Cash Magnet($2000), Fifth Third Truly Simple ($4000), Truist Spectrum Cash Rewards($4500), Truist Bright Card($4500), CapOne Quicksilver(Bucketed @$1500 manually lowered to $500), US Bank Cash+ ($1,000), WF mortgage 195K Fico 8: EQ 778, TU 765, EX 758 FICO 9:EQ 829, TU 812, EX 791, AAoA-97 months, AoOA-28 years
Congratulations on the much deserved CLI with Capital one 
My situation is very similar to yours, I requested CLI and received only $100. It seems like the card is definitely bucketed, especially considering the first four digits of the card are 5178.
Congrats on the increase! A win is better than no win!
