At first I thought "She might be being a bit picky" but then I thought about our recent property rental and how I would have felt after our long, tiring drive, to arrive and not have towels ready and waiting. The gatehouse called the owner we rented from when we arrived, and he called us then to make sure all was well. I, too, am curious who you rented from.
Enjoy your vacation and don't let anything ruin it. On the bright side, the towels were actually cleaned!
Also, wireless internet can be fickle, but definitely notify the company and let them know that it isn't set up properly and needs to be tweaked.