Called on a Saturday afternoon, left no message.  Call display showed 'Community grass'.  I've had no past business with this company.  I found them here: http://www.communitygrasstreatment.com  Also found they have 26 complaints with the BBB in the past year.

Is this the BBB report you are talking about?
http://www.bbb.org/ottawa/business-reviews/la ... ottawa-on-51796
Community Grass Treatment Canada
(613) 627-4845
343 Preston Street (11th Floor), Ottawa, ON K1S 1N4

Posting a link to the business' website instead of a link to the BBB site makes your post look like spam,
as the BBB report contains the business' website.

Received  phone message on June fourth someone came on June  the six left bill in mailbox for the amount of 348.04 and didn't do anything. I phone and of course it was an answering service. They returned my call and the girl named herself Genevieve told me  it wasn't done.I know  that it wasn't I was home all day.It's been  phone calls from them .They phone
Telling me someone will come   and do the work.I  stayed home no one came.I phone every extension they have 1-877-579-9111 extension 211 -extension-400 extention 220. I left a message that  I no longer want them at my place.They didn't do  any work so they better not send me any bill. All they gave me was stress.After that call I receive another  recording message that they will Come tomorrow.I do not want to have anything to do with that company.
I think it's a scam.