SA not responding seems to be a fairly regular occurrence.
EDD should just spell out ESTIMATED, a dart board seems just as accurate.
I see you ordered MSM which appears to be one of the least produced colors which means longer times between production runs. You did not specify if it was a 5 or 7 seater, but if 7 seater that just makes it worse
Seems
most people get their MYLR in 90-100 days. Being you ordered mid July, my estimated guess for you is early november (probably a wrong guess, but as acurate as any EDD this far away from actual delivery). If you have just one of the gerneic months (January), it will update many times before it starts to narrow down into a window that has a chance of becoming reality. Its just how their crappy estimator works.