I'm working as an IT Staff in a College under the Senior High School Department, in this school the different Dept. Heads acts as the HRM on their designated departments, The Senior High School Principal (a dept. head) offered me three subjects at the start of the school year, and I agreed with the condition that they would pay me separately. The principal and I agreed on the said condition.
But here is where it gets rough, after a month I noticed that there is no increase in my salary, it turns out that the accounting department denied my additional salary (from teaching) for the following reason.
*The time I spent on teaching was still under my working hours as an IT Staff.
*They want the teaching loads to be "bundled" in my salary as an IT Staff.
After having known this, I wrote a letter to the Principal stating that I would like to transfer my teaching loads to another employee. When the accounting department knew this scenario, they deducted the three(3) subject loads on my salary as an IT Staff.
My question is this, did the accounting dept. made a correct/legal move? and can I get a favorable decision if this situation goes down in a proper court?