WZ662, I can fully understand the concern expressed by the VGS about pilots not talking to them on the radio.
However, if you have a personal contact there, it might be useful to pass on to the 612 VGS hierarchy that the relevant radio frequency doesn't seem to be published anywhere for civilian pilots. I needed to land somewhere very close to their airfield a few months ago but couldn't find a frequency. It's not in the AIP, not on the CAA charts, and not in either Pooley's or AFE minor airfield guides. I also tried to contact them by telephone, without success because the phone numbers given on their website are for weekends only. I tried calling anyway but no-one answered. This means that pilots transitting that area are therefore likely to be talking to Benson, Brize, or Oxford instead.
612 VGS could do more to help other pilots in this respect.