your portal doesn't do any good if no one responds,

I bought CS4 weeks ago and can not download it.  I've spent more than 10 hours on the phone with tech support, or mostly on hold, waited for  callbacks that never came, jumped through every hoop, erasing OS because they said it wouldn't download on a Mac running 10.6.3 and with less than 12 digits in the serial number (the day they said this was the first day Apple came out with 12 digits), deleted all adobe products and there has been no resolution.  No resolution offered.  They finally called back last Thursday and said they think it might be a disk problem and wanted to check but their software didn't work.  They PROMISED to call me back yesterday at 5 and PROMISED it would be resolved.  I was here at 5 and waiting but the call has yet to come.  They don't respond to the portal and everytime I call it is a minimum of 30 minutes on hold waiting to talk to someone.  They have taken more than 40 hours of my time and won't resolve this.  I bought CS4 for a photoshop class that I am taking.  We are on the fourth week of class and I can't use my software.  This is absolutely insane, to allow a customer to pay $500 for a product but to not let them use it.  I am beyond angry.  Adobe tech support is the worst system I have encountered since this recession.  All other companies have improved their customer relations but Adobe's has gotten worse.