That is a shame.
This is now and always been a critical element in machine purchases. At least for me. I get excellent CS from Novakon, Tormach, Timesavers, CNCRP. Basically for all of our larger machinery. I don't need them very often, but when I do, it is usually same day answers. More often the same hour.
If you are having some issues though, start a new thread. There are guys on here with expert knowledge that are willing to share and help for nothing. That said, one on one with a teacher is money well spent