Feeling bad about a daycare letter.

[bright sparks]

I think some of the comments above are maybe a little harsh. Daycaremomm was being genuine in her question.
Kids and care are personal, business is not. So the clash in the daycare world can be particularity stark and jarring. Your provider sounds top notch and if your child is happy and well cared for, she is on her A Game.
The paperwork is only a formality and one needed to ensure communication is clear. It seems harsh, but it is really just to document the facts and make sure there is no communication issues, and is not a reflection of her feelings about you or your kiddo. With the quick hi/byes at the door, she is just ensuring she is available to the other kids and keeps the day rolling.
I think you choose well and should take the letter as proof that you have hired a very professional and well trained care provider.
That said, if you think that the part time hours are causing issues with her schedule (see Mickyc above) just ask her if everything is all right? A good face to face conversation clears the air and will give clarity to both you and her.

I think a lot of issues occur between providers and parents due to poor communication skills whether it is both having issues or one or the other. I would have a face to face conversation over texting or emailing to clear the air and clear things up. Don't begin to assume to know what someone is thinking. You could take the letter any way you like but it doesn't make it so in the providers world. The only way to know for certain is to talk to her. She sounds like a great business woman and a caring provider and I am sorry you feel like you do. I'm not going to discredit your feelings though. If you want this to work out, I suggest you take heed of what people have said on here about contracts, policies and the whole topic of "flexibility". If the contract you signed did not say the policies were flexible then they are not. Flexibility means that a home daycare provider may be more willing to tailor care to an individual more so than say a centre which has a standardized way of running things which may not suit some peoples needs or preferences. Read through this forum and see how much conflict and misunderstanding has come from providers texting and emailing versus face to face up front and honest dialoguing. In my opinion that is where a lot of issues occur. Confront the issue in a respectful manner making it clear from the off that you just want to get this off your chest and address it and then you can move forward. Your provider is putting everything in writing so she has a record and to make sure there is absolutely no reason or excuse for misunderstanding. Had you followed the contract as outlined to you and signed by you, your provider would not need to keep sending written reminders, but perhaps this situation can be dealt with so you can carry on with the relationship.