i started a new job about 6 months ago working in an office where i am on a lower grade than the 3 other women who work there but do not work for them. (public sector). it was going ok and i make my fair share of tea and coffee along with everyone else. just lately one of my higher grade colleagues has taken to asking me on a regular basis 'do you fancy making a tea?'. I am getting really about it. Just because i am on a lower grade is it my duty to make her tea? she hardly ever makes one. I have made it clear i'm unhappy but still get up and make it. It's really starting to get to me. I am not an office junior and more than capable of doing same/similar jobs to them, just find my grading suitable as i have young children at home. Job is fine apart from this. AIBU to object to making the tea? what would you do?