Mr. Mow It All

We hired Mr. Mow It All to clear our small townhouse complex on King St. West. We've been paying them since November (not their fault that it hasn't snowed, just the way things go.) But with the first big snowfall last weekend, we still didn't see them. They should have reported by eight a.m. Saturday. Nothing by Monday, so our property manager contacted them. They first claimed to have plowed on Saturday, then finally owned up to a "miscommunication" with their staff. By five o'clock Monday, our back parking area was cleared, but still not our driveway. After more prodding from us, they returned and did that on Tuesday.
Same thing this weekend (with a MUCH larger snowfall,) except this time they still haven't arrived. No show on Sunday, no show on Monday. They also won't return emails or answer phone calls from our management company (Summerhill,) and we're left wondering if they've just disappeared with our money.