Delivery of your DV to the address specified in their dunning notice and/or the adddreess posted by them in you CR is successful legal notice of service. If they return it, it is still legal notice of service.
But that date of receipt does only one thing for you. It triggers you legal right to assert, if they then make any collection activity after that date,a violation of FDCPA 809(b).
A DV letter never compels any date of response by the CA. They can choose no response..
You can assert their legal receipt of your DV request, but that compels no legal response. They must just shut after receiving your DV letter unless, and until, they choose to do so, as long as they dissist from further colllection activity.
FDCPA 809(b)/
