Well the FDCPA specifically states that the Dispute must be *in writing*. The FCRA covers the actual credit bureaus, in which it says "notif[y] the agency directly, or indirectly through a reseller" but that is also because the dispute process with the CRAs is audited and overseen by the FTC itself and reported to Congress. This person did not dispute to the CRA, but to the creditor.
As I said, if the dunning letter states ARS then they got the Dispute then sneaking in The Bureaus behind your back is a violation. They KNOW your address!
Document everything, get all your paperwork together. If they sue you, then countersue, collect the $1000 (and possible attorney fees and court costs), and use that to pay off the debt!! Delicious irony! HAHAHAHAHAHA!!
And besides that, if they are afraid to send you Verification, then the Discovery phase of the court process is going to wipe them out! Perhaps you should hit for your $1000 anyway! And if you have to take a day off from work and it costs you a day's pay, you can also request the court to add that [15 USC 1692i(1) "any actual damage sustained by such person as a result of such failure [to comply with the FDCPA rules]" and attorney fees and court costs.
It's unfortunate that you have to go through this sordid mess but it's better not to roll over and let them run you over. Good luck with your case!
OH by the way, SJD, if they send it off to another CA, then that CA must also send you a dunning letter with dispute instructions.