To be eligible for the Triple Velocity Points promotion you must
1) Activate this offer between 12.01am AEDT 25 March 2019 and 11.59pm 1 April 2019 inclusive (Promotion Period);
2) book an Eligible Flight during the Promotion Period; and
3) enter a valid Velocity membership number at time of booking. An Eligible Flight is a flight marketed and operated by Virgin Australia, between 12.01am AEDT 25 March 2019 and 11.59pm 18 February 2020 inclusive and booked and ticketed in a fare class that normally accrues Points. Points cannot be earned on Velocity Reward Seat bookings. Flights can be booked via Virgin Australia website or your preferred travel agent. Codeshare services marketed or operated by partner airlines other than Virgin Australia are not eligible for this offer.
I'm getting "Unfortunately we were unable to activate your offer at this time."
Would say this is targeted.