Agree with others..Shop First and then Switch companies.
Allstate did the same to us with no really good reason. When we called to cancel they said they were surprised we had not cancelled earlier. Said call us back in 12 months and we can probably match your new rate.
Insurance has gotten just like DirecTV and Dish and the power companies here in Texas. Switch every chance you get and you will way ahead on savings.
And no...you are not going to get cancelled by bouncing back and forth. Shareholders need your money.