Bumps in the road

So far, I am not impressed with the installation process. The first strike was when the install person was supposed to come out and measure the roof for the final step to getting the plans sent to the county. He was supposed to come at 9am on Tuesday, November 22nd. I received a call from him at around 7:30am that day saying he wouldn't be able to make it, and rescheduling for a week later. Not a big deal, but annoying. After that was taken care of, the office called to schedule the install. The proposed date was December 20th, but we were on vacation that week, so I asked to move it to the 27th. This was no problem, and I thought we were all set. I even got a confirmation call on my voice mail on December 20th. When I got back from vacation on 12/22, I called back to confirm. This is where the new issues started. There were apparently issues with the shade measurements taken back in November. I am not sure what the issue is, the operations person I was talking to had not been trained on shade measurements yet, so she didn't know what the problem was. They would work on it and get back to me on Friday, the 23rd. When they called back on Friday, the shade measurement issue was resolved (although, still no explanation as to what the issue was or how it was resolved), but there was a new problem. The panels didn't arrive on the shipment on Friday, so they are unable to proceed with the install this week. The next slot is January 9th. Hopefully, the panels will show up by then, and someone will explain to me the shade measurement issue. I hate last minute issues, most of them can be avoided with planning. While I am not sure if that is the case here, from where I sit it sure looks like it. If I hadn't gone on vacation, the install would have been scheduled a week earlier, so shouldn't they have had the panels ready for then?