Can't get Alchemy Specialization quest.

I am an alchemist. I had chosen master of elixirs at first. I wanted to change my specialty to Master of Transmutation. I unlearned Master of Elixirs, but the trainer does not offer me the quests for specialties like he should. I had a gm respond to my ticket saying, "You were not online when i checked the ticket. Submit another ticket" I have a 2nd ticket in game that i have been waiting on for 7 days. This is costing me gold every day. Please help me get the quest to become master of transmutation. How long should i expect ticket times to take? Is 7 days normal?

Character - Dathheal - Druid - Horde