My mom is a cleaning freak. Her house is always immaculate. But she has always had a cleaning person come in once a week or once every 2 to help her out. (DH says she pays people to come over and watch her clean, but whatever.)
She ended up hiring these 2 women to clean her house. The first week they did well. 2 weeks later, they did a crappy job. My mom called and left a message, and the lady called her back. My mom explained that she'd need a better job done and told them what she expected. She was nice about it, and the woman seemed understanding.
The next day, the lady emailed my dad telling him that they weren't coming to clean anymore.