Hi - I work in IT, on credit systems. In my experience, most companies will pull a score quarterly, if not monthly. I think it's strange that Chase hasn't pulled your score in 7 months...that seems long to me.
One other thing - besides pulling scores, most CCC also monitor credit reports in the same way that we monitor them via CM subscriptions. One company I worked at received a 'trigger' file from EX daily for all customers. Triggers would include things such as address changes, delinquencies, bankruptcies, etc. We would handle the accounts accordingly. This way if something major happens between score refreshes, they are made aware of it.
Last note, CCC also maintain internal behavior scores based on how the account is handled. Some systems have their own internal scorecards, while others use third party products such as FICO's TRIAD to derive a behavior score. Regardless, this score is also looked at when relimiting accounts.
I think I'm rambling now, but long story short....I can't explain the 7 month issue but just because they haven't refreshed your score doens't mean they don't know what is going on. I hope this helps! Regards, cardmaster.
