CRA states that it is responding to requests for pre-VDP no-names discussions promptly

Those considering making an application for relief under the GST/HST voluntary disclosure program may want their advisor to first have a no-names discussion with a CRA official to determine whether they would fall in Category 2 (for which CRA generally goes back only 4 years, and relieves half the interest and all penalties such as the 4% late-filing penalty) or Category 3 (generally no relief, other than for any gross negligence penalty), given the vagueness of the published distinction between the two categories.

These no-names discussions are handled by the Shawinigan National Verification and Collections Centre (NVCC). CRA stated:

Depending on the complexity of the situations, as well as the availability of the applicant and of the VDP officer, it is recognized that it may take several contacts in some situations to fully conclude a pre-disclosure discussion.

…[T]he NVCC is currently responding to requests for call-backs promptly.

Neal Armstrong. Summary of 28 February 2019 CBA Roundtable, Q.6 under ETA s. 281.1(2).