So I started working at a UPS Customer Care Center as a part time H.V clerk on May, and going through a temp agency. During from the time I started, I arrive to work a half hour before scheduled work time daily and begin work about five minute-ish before work time. I had to call in twice for sick days. Once on my third week of work and one earlier July. Even after calling in before work hour I still feel like it'll look bad on me. Not until today. I overslept a HALF HOUR past my starting shift and called in to both the company and my temp agency, and haven't received any calls/text from my supervisor. So at the moment I'm kinda just pacing around, EXTREMELY worried because as working part time, there shouldn't be an excuse to be late at all imo. I was too afraid to still try to go to work because it was way past my scheduled work start time. What's the most that could happen?