DVLA Testing

I lost my driving licence in Dec 2014 following afield vision test carried out by Specsavers at the instigation of the DVLA. Following notification that my driving licence had been revoked, I complained to the DVLA reference the following points.
1 The test was carried out in an unprofessional manner, by a junior member of "front of shop staff"
2 The test involved following a moving light, a test which I had never experienced before.
3 I was not calibrated correctly to the machine, at one point the moving light disappeared completly.
I did not receive any satisfactory explanation to these points. I have since been made aware of issues raised in the press, indicating that there have been issues identified in the "Process" of testing.
Are there any forums which specifically deal with this issue.