You don't need to declare the course. You have not been prosecuted as you took the course in lieu of a criminal prosecution so there is no decision to make here. Clean license, nothing to declare - very simple decision.
ps. 83! Harsh! Pure revenue generation. I bet you and the 100 cars around you have all had the same letter today..
Previously: 2003 Peugeot 206 1.6 8v | 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. | 2003 Nissan 350Z GT Coupe 286BHP
Now:2010 E92 LCI 335d M-Sport