sorry to tell you mate if u have only had your licence 4 10 months you are on a 2 year probat if u get 6 or more points on ye licence yove lost it and have to take ye test again sorry to be a bearer of bad news (as im on the same haveing just passed me hgv ) anyway hope the wanners didnt get you
The 2 year probation period starts from the date you pass your first test & once you've held that for 2 years never re-applies (unless you're forced by the court to re-take them after say losing your licence for dangerous driving), doesn't matter how many other tests you take later for additional entitlements.
So if he's held a car licence for over 2 years then he's on a 12 point limit not 6, same applies to you, so if you've held a full bike or car licence for more than 2 years, the fact that you've just passed your HGV makes no difference, you have to hit 12 points before they can ban you under the totting up procedure.
Unless there's some specific law for HGV/PSV licences due to the potential for damage something so big & heavy possesses ?