As much as I enjoy using SU, it is shameful that Trimble’s customer support is weak and leaves a lot to be desired. I find it unfortunate that it is impossible to initiate a telephone conversation with a technical rep or a sales rep. That being said, you may have some success by sending an email to following email address:
sketchup-pro-sales@sketchup.com
I have recently communicated through this channel and received prompt replies twice earlier this week
and you should also contact them through their online webform:
http://help.sketchup.com/en/contact/technical-support
It is doubtful that you will receive an immediate response although the other day, I received a reply to my last communication within a few hours. (In fairness to Trimble, the first contact was responded to within two days.)