I currently work as t1 tech support($21/hr). What my job actually entails is doing high level application support that required me learning SQL. I have almost no programming background and was provided zero training, documentation, or assistance. I had to learn how to support this by teaching myself SQL from working (or not working) portions of code in the program, and my google skills. I asked for a road map for promotion/raises/career advancement and was told that I would never see a raise/promotion. My manager specifically told me that I would need to apply to another team for career advancement.
So I did! I received an offer working at another company that met my entire checklist, like being able to work remotely (instead of 3 days in the office for t1 support), and the pay is over double what I am currently making.
Managers: be careful what you wish for!