Kinderkraft crib model 710

Question

I have a Kinderdraft crib model #710. After assembling the front drop side, we are not able to push the rail down it is stuck. We followed the instruction in the owners manual by pulling upand tehn applying inward pressure with the calf of the leg on the plastic "Push" plate . The rail does not move down. Can any one help or does any one know a working phone number for Kinderkraft??