So I started a new job last month, it's low paid (8.50) and is temporary, to cover maternity leave. Tbh I'm way over qualified but I've been out of the work place for nearly 4 years after having my eldest and now my youngest is 1 I'm wanting some part time work in this field just to dip my toe back in and freshen my cv a bit. I've no intention of working more then two days until my youngest starts school and I've definitely no intention of working weekends ever again. I've done jobs since I was 14 and worked all hours and now I want to put my family and my life first, I'm also starting a course in September to freshen up some skills. Anyway that's the background. So the job is 2 days per week and I made it clear that that's all I could do, hr we're still delighted to have me on board. My manager has now come and said the woman on the reception desk has two weeks holiday coming up and I need to help cover. I said I don't really have childcare but I'll ask and try and do an extra weekday on each of the weeks. Shes not happy and said she needs me to do the Saturday. I said "I'm sorry I can't I spend the weekends with my kids", She then said "I understand that but if you don't cover it I'll have to and my kids are in nursery 8-6 5 days a week and I really need my weekends with them". I replied that I was sorry I couldn't help. Shes not happy and I get that but imo I'm not paid well enough to want to do a Saturday, her salary is at least 22k (I know as my previous job was her job in another company) and it's her responsibility, that's what happens in her position. My friend disagrees and says as "someone lower" I should be picking up the slack. I feel I made my position very clear right at the beginning.