Would my insurance drastically go up. Do I need to inform the insurance immediately the point is added on my license or I need to wait till renewal? (Which is next year March)
No, 3 points has very little effect, as to whne you need to tell them, that depends on what it says in your specific policy, we can't see that.
I use Admiral. I had a black box installed until 2 days after this incident. I had a nearly perfect score on the result. I don’t speed at all. Just on this one occasion that I exceeded the variable speed limit.
Is there any chance I can get another black box to reduce my insurance premium?
Ask Admiral, we can't answer that for them.
Be aware that many people who believe they 'don't speed' often have issues with understanding limits, so your best defence is making sure you are 100% certain you understand how limits are conveyed, especially what a system of street lighting means (though wouldn't have helped here),because if you are caught for another offence within 2 years of passing your test your licence will be revoked and you have to reapply for your provisional licence.
