Don't Sign Off on Incomplete Work

I changed form a microwave link to fibre and my service provider had them install the fibre to my home. They left trenched open and paving bricks piled against a gate. I was told they would be back within 2 days to close up. They just didn't arrive. It took me more than 5 complaints and numerous phone calls and eventually a threat to have a contractor rectify it at their expense before someone came and did the work. I recommend that you do not sign off on the final work order until they have closed up and EVERYTHING is completed satisfactorily.