Sorry to hear about your denial, OP.
I app'ed for a PLOC in May of this year from WF, and was triple pulled for it. Had just under a year of CC history with two accounts open at the time, but got the $10k requested on the application.
Pretty sure my Cash Wise app pulled EX and EQ, as well. That was in October of 2017. I think it's something they do when applications are borderline approval, but just a hunch.
PayPal 2% MC $10K | WF PLOC $10K
Chase Freedom Flex $13.7K | Discover IT $13.5K
WF Propel $8000 | WF Cash Wise $1500 | USB Cash+ 5000
Amex Business Prime $20K | Amex ED $4800 | Amex Gold | Uber Visa $1500
FICO 8 Scores (2/21/21): 767 TU, 770 EQ, 771 EX