Free trial of LRClassic is not downloading on new Mac mini

I have a new mac mini and have transferred everything over from my old imac.  I downloaded the installer for lightroom and creative cloud.  I have dragged my LR5 which transferred over from the old computer to the trash and emptied it.  When I double click the installer icon nothing happens - no error message - nothing - it will not start the install.  I have also tried restarting my mac mini.  What can I do or who can I talk to about this?  Is there an Adobr support number I can call - I'm very frustrated and losing days on my free trial version.