K.E.
I would put your foot down and get them to do what makes you feel best. She has already repeated kindergarten, which seems odd (unless she was having problems). Tell them you want the placement test, to make sure she really is ready. Remember this is your child and your looking out for her future. The school staff need to listen to you, not try to brush you aside. She may be the right age but she will also be skipping work she has not yet done. Take the test.