My university offers a work-study program where full-time students can work jobs within the university which require around 12-15 hours weekly.
The semesters are Fall (Sept - Dec), Winter (Jan - April) and Summer (May - August). The work-study program for Fall/Winter is till Feb 23rd as it says on the website and on my contract.
I got really busy during Mid January to Feb 23rd so I didn't put in any shifts. My supervisor emailed me near Feb 23rd saying I should be picking up shifts. I apologized and picked up a shift and then it was Feb 23rd. I figured my work study was over (My course load is very high this semester and through the summer so I purposely looked for a job which ends this semester). I got an email on March 21st from supervisor saying that I need to pick up more shifts and that I went missing again. I'm loaded with school assignments and got too busy to reply and I thought my work study was over.
I then got another email yesterday from another coworker asking if I can work this week and that I should be picking up as many shifts possible to make it easy for the rest of the workers and supervisors too.
How do I tell them that I want to end my contract and no longer want to work without looking incompetent and burning bridges?
I understand my employers point of view now (it's hard for them to train students to simply work part time just for a couple months, and all the other students who were employed with me are still working).
Overall through fall and winter I didn't work many hours at all so I can see why the employer would be upset.