I would be more concerned they took it from your account, did they not write/email you to inform you of the increase? Or have you agreed to an annual re-newal, if so I would do as you are doing look around and go back to them with the lower quotes and at least get a reduction. Have they taken the first months payment for the renewal year, if so you could be on a deadline to exit and they may well charge an "admin" fee. Good luck