I’ve had two lots of speeding tickets, years apart, but it never affected me and my lease. I most certainly did inform them, as you should. Mine were 97mph on an A road and 103mph on a motorway in an auto Clio, who knew the Clio could even go that fast, three up to boot!!
It’s a good job that they were years apart, as both those speeds should have resulted in 6 points each, which would have likely resulted in you getting a ban. At each of those speeds you could have had a short disqualification 😱