I live in the uk, ive been at a job (part time 0 hour contract) for about 6 months now, today when signing my time sheet i saw that my “boss” had edited the previous day to say that i turned up 30 minutes after the time i actually turned up without contacting me. I edited it back to the correct hours and left a note for them to message me before they edit next time. What else should i do in this situation? Run for the hills? This isn't the first time.