As I’m a young driver and my insurance is high I tried for 3 weeks different times of the day and night, running around 3 quotes a day and the difference is crazy. I was first offered a good quote 1.8k and accepted it. Kept doing the quotes and by the time of the renewal I had got it down another £100 in those 3 weeks just by getting quotes at different times of the day and night.
Same insurer with different quotes each time and every time I rang them up and they just dropped the price to match it when I found cheaper. On the phone each time was the best price they could give me but then 3 days later I would ring up again with a better price from the same insurer.
This was 2 years ago on my rx8 and using comparethemarket.