Where on the Adobe site can you buy Professional DPS?

Question

This link shows you can buy professional dps from Adobe http://www.adobe.com/uk/products/digital-publishing-suite-enterprise/faq.edu.html#
- see link Are there different buying options available with DPS?
However, when I call the number, the staff member says he's enterprise only and that there is no professional team and to try sales.
I try sales and they say it is not for sale via adobe only from a reseller - despite what it says on the Adobe website link shown.
Resellers are charging nearly double the price quoted on the link and prices vary greatly and only considerably more than Adobe price quoted on the link.
Before I go ahead and buy from a reseller can anyone confirm that you definitely cannot buy from Adobe. The link says you can, but everyone I've been directed to from Sales, Enterprise and Customer Services say no.
is it true what the Enterprise staff member advised that resellers are not supposed to sell at a price different to adobe?
Why does the web link direct you to call a number and fill out a form, but then sends you to Enterprise who say they know nothing about professional dps. Very frustrating!!! Where is the professional dps team and why does everyone tell me they don't exist! ????
Help!

Answer 1

Thank you Bart for answering my question, however, the link does now provide a way to purchase Professional DPS. If you look at this link and click on 'are there different buying options available with DPS'.... Adobe Digital Publishing Suite - FAQ  It is the annual or monthly subscription of professional dps, I wish to purchase.
The link you pointed to, appears to be for the creative cloud, which does not provide the professional DPS, unless my understanding is wrong? I do not see anything listing DPS to buy from the link you posted. My understanding is that creative cloud allows for just the basic DPS and single apps and I want to purchase professional DPS so that I can sell subscriptions.
Does anyone know how I can purchase Professional DPS. I have spoken to so many Adobe people on the phone in sales, enterprise, customer service, technical and no one can find a way for me to purchase. The link Adobe Digital Publishing Suite - FAQ says it is available to buy both annually and digitally. Where can I do this through Adobe ????