You gave plenty of advance notice for cancellation, so I get being disappointed, but rude is uncalled for. I had one like this who I interviewed and briefly discussed a contract with. There was no deposit or completed contract. She wanted part-time. I sat down and discussed it with my husband, and we decided to go with before/after care only which was in super high demand at the time, and it allowed me to take my preschool daughter to lessons during the day. I emailed her back, telling her of the changes and why it was better for my family, and she lost it, and called me a liar, and that I had no integrity and no business taking care of children! This was a upper middle class, well educated woman, and I was shocked by her behaviour. She also bad-mouthed me to the neighbourhood. SOOOOOO glad that didn't work out LOL! People amaze me sometimes!