Did your son accept a job with more hours than he wants to work...hoping that the hours could be reduced? If so, this may be the issue. I agree with others...there are no stipulations regarding using all of the hours awarded. However, if the supervisor wanted and hired your student for a 10 hour a week job, and the student wants to do this job for only 5 hours, the supervisor may be using this as a reason to remove your son from this job. I will say, at my daughter's college, there were some work study jobs where the student accepting the job understood there was a minimum number of required hours per week to KEEP the job.