That makes a lot of sense, thanks for clarifying.
I guess I'm wondering whether there's any strength to going to London Tribunals if they did not offer the discount (worse case scenario)? I am not really about to make things worse for him. Is there any strength in this kind of circumstances at London tribunals? The councils mitigating circumstances does not contain this, however being merciful is kind of the point of informal challenges, I thought. Also it's a busy road and turning into that road, that sign seems quite overloaded, with oncoming traffic you really don't have a lot of time to read it all, while looking out for any pedestrians and other vehicles.
Also, I completely forgot to edit my previous post, but there was an error, I can't change it now, although I'm sure most knows anyway, but for clarification they're supposed to send out the notice to owner after 28 days, so that would be after the 6th, not before. I guess it makes sense to offer the discount, unless they got their pack ready already with this.