I'm confused- are you on a meter or do they base your usage on the community average? Or is the meter brand new?
I ask because I know sometimes if they can't get a reading they will do an estimate, and then the real usage shows up later on.
Funny story- when I moved into an apartment in Grande Prairie they sent me a 1st month bill for something like 700 kw/h. (Which is very high for an apartment; apparently the last guy was running an office out of there.) I called to complain, they told me "maybe you used that much"- and that to wait for the next bill. Next bill came with negative usage; meaning what they billed me for 1 month was more than I used in 2 months. They then accused me of tampering with the meter.
Then the next month's bill came in at 650 kw/h, and the following showed negative usage again. Lots of fun with that utility company.