To get the Ember Evolution Stone, you will have to buy it in the store with real money. I do not suggest buying it, as you will get stronger dragons along the way.
You need to be in a team with ATLAS ACCESS.
To submit a ticket, go into settings, which is the small gear icon above the mailbox.
Go to SETTINGS, biggest gear on top, and then hit SETTINGS&HELP.
This will bring up another menu. From there, hit the pencil and paper icon (top right for apple) and then write your ticket.
If you CANNOT send a ticket in game, you can always send requests to Zendesk using the link below.