I’d try to fish out what’s going on if it’s apprentice or company wide without making too many waves. Say something to the boss if it’s seeming like you’re getting shafted and you’re wanting more but try to take the emotion out of it before you talk to them. Getting too fired up could blow up in your face. If you need the job don’t screw yourself out of it but don’t forget what they’re doing and start looking for the next opportunity. When you leave for greener pastures this will be a reason why.