I was working for an employer for 22 months as an operation supervisor and one day they gave me termination letter stating I was not for the company and there were no warnings. I was given two weeks of pay in lieu and remaining vacation were paid out.

A company can terminate you without warning, as long as the reason for the termination is not discriminatory and they provide the proper termination package. It sounds like you received the absolute minimums only, so I would strongly recommend that you contact an employment lawyer at the number below to discuss your entitlements.