I've got an identical issue going on right now with my Citi Card and Equifax.
Every month for the past year each Bureau has updated my balance within 7 days of closing date. Not this month. TU and Experian updated my balance on the 9th. Today is the 18th and I'm waiting for EQUIFAX to get their crap together. Hoping to get a new truck in less than 2 weeks. Would like to see this info updated although I think my score is already good enough for A+ rates.