I mean this is the nicest way possible but do you think it is possible that you are feeling extreme guilt over the fact that you have gone back to work and have had to put your ds into child care when you possibly weren't ready to? While I agree the formula situation and not knowing any of the staff is pretty poor form on their behalf and something I would be taking up with the director, you seem to be taking everything they do (I.e the newsletter/sickness) as if they are purposely neglecting your ds and being passive aggressive towards you (for what it's worth I don't actually think the newsletter was directed at you and your ds). I agree with the other's though, maybe you should be looking into other centres or even try family day care or a nanny. It's sounds as though it's been a very tough month with going back to work, your ds starting child care and sickness (both you and your ds) and maybe you are taking things to heart more than what you normally would. To me it doesn't seem like a good fit and you aren't happy with them.