Insurance companies rely on apathy

Have spent nearly all day on and off the phone and internet trying to cancel my current car insurance due to run out in a few weeks and trying to get new insurance instated, after searching the comparison Sites for a better deal.
My old insurer increased the cost by £70 despite nothing having changed. The new insurers were charging £100 less. current insurer tried to persuade me to remain and reduced the increased demand by £50 but too late. And not enough.

They rely on apathy and i can vouch it was a bit time consuming but hey, i am £100 better off for the same level of insurance. (Fairly) simples.