Silly Question from "newbie" Virgin Flyer

I've got a rather silly question for all of you Virgin Guru's. 
In the trip reports, I notice that there is occasional mention of the "queue jumping" benefits for UC passengers of the "purple luggage tags" on cabin baggage.
My family and I will be flying UC on our trip to London this coming July (VS020 & VS019.) Are these "purple tags" issued to us by the limo driver, or at check-in by the counter agent, or are they obtained in some other fashion? Is this benefit only for you lucky folks who travel a great deal (i.e.; for Silver and/or Gold members.)
I'm certainly looking forward to my first flight on Virgin, and the "magic purple luggage tags" are certainly not vital ... just an item of interest.

Jim McD
Palsgraf948

In the trip reports, I notice that there is occasional mention of the "queue jumping" benefits for UC passengers of the "purple luggage tags" on cabin baggage.
My family and I will be flying UC on our trip to London this coming July (VS020 & VS019.) Are these "purple tags" issued to us by the limo driver, or at check-in by the counter agent, or are they obtained in some other fashion? Is this benefit only for you lucky folks who travel a great deal (i.e.; for Silver and/or Gold members.)
I'm certainly looking forward to my first flight on Virgin, and the "magic purple luggage tags" are certainly not vital ... just an item of interest.

Jim McD
Palsgraf948