Yep, I go the same 'no policy to give feedback' email too. Pretty harsh i thought given the supposed shortage of controllers at present- wouldnt you think they would try and help you prepare for your next attempt by giving you just alittle feedback on where you may have tripped up? Instead im going to have to prepare for all three tests again and get through the initial selection day again!
When I contacted them after receiving the email the lady said 'we used to give feedback but due tothe introduction of a new sophisticated system we are no longer able to do so.' No way round it just think there trying to become more industy standard.
Good luck for your next attempt anyway!
