At the bank I work at, my co-worker (a banker) and myself (teller) are being asked to train the new assistant manager by the bank manager. My co-worker applied for the job and was not hired for the position, despite being qualified and licensed to sell investments. To become a teller trainer, I need to go to a class so I can get trained and be eligible for a daily pay increase. The schedule doesn't permit me to go, because the bank is cheaping out on hiring help among other things. I dont mind helping, but i want to get paid for it, and the pay increase is a set standard. My boss told me today "you can just do this to help us out". How do I politely decline? The new assistant manager also doesnt have any banking experience, they came from being a shift manager at the food court in the mall!! i dont mind doing it, but its a procedural thing for me to get paid.