said by bcool:
Thanks for that. This is something I did not know. Your comment really helps in my letting this go for now....
My power company does this. They only read the meter every so often and estimate usage in between. It's not unusual to see my ~$67 monthly bill double for a single month once a year as they catch up.
What irks me is that my gas company charges a $10 minimum fee. I only have gas heat, so if my heat isn't on, my usage is zero ... yet I still have to pay $10. Annoying as hell.