WOAH HONEY.....MAJOR warning signs here, totally unacceptable behaviour for the staff to treat you litle man in such a fashion, DEFINATELY see the co-ordinator and express your concerns, are they an accredited centre? I have been a long day care worker for nearly 13years and I know for a fact that I would at least be given a written warning for such behaviour in the work place.
Have you been in to see the other centre you put your name down at, again?...I would call back in now, let them see that you are really keen , are their other centres near by you could try?
I really hope so, big hugs to your little man and good luck, you are totally right to be feeling uneasy, not acceptable even for a really bad day at work!!!!