I work for 123 company , I hope to complain my colleague May who doesn't sensitive with cleaning material originally , but actually she revealed she appointed with doctor to avoid over workload, I think that is unfair for other employees. And our manager also know that , but he turned a blind eye to it. Even before we get off duty every day , May ask for us instead of her to clean. It leads to increase workload of other employees. if this situation cannot reform, we will complain to the headquarter.