I received an email from my paralegal's assistant. Apparently the address I pulled off the bill from Capital One for bankruptcy notices was incorrect. (I may have copied it wrong onto the piles of paperwork I filled out or they may have inputted it incorrectly.)
If a company cannot be notified then it's likely that debt won't be discharged.
So you better bet I was on the phone within a minute of getting that call. I got a different address (different state, even) from C1 and emailed that back to them. I also included their regular address for correspondence, figuring it can't hurt to have them send a notice both places.