My supervisor and I had a meeting with the team manager as my workload was excessive. My supervisor and I both agreed after the meeting it was a waste of time and that the manager was fobbing me off with excuses. This manager is insistent that I start doing tasks for 2 women at work who are bone idle and are always on their personal mobiles or chatting to people in the office and not working. He is already aware I have a high workload. He won't back down with these women because they are his friends and have haven him a long time. I just keep ignoring the tasks because I feel people are taking me for a mug. The supervisor has told him I am not to do it and he says no. What is a way round this issue because I feel like the only way it would be resolved is to leave.