Buying older version in student license

Hi I am shammi here, I want sketchup 2017 license. I am trying to buy student license from Building point, Australia. I think it is providing license for latest version (2019). can I use the license to activate 2017 version? if not how to select older version?
Thanks in advance.

Why?

No, you will receive a Subscription for SketchUp Studio

No

Can you say why it is you need to use an older version? Or as Mike said, why?