Nursery disappointments

We started little girls nursery from September for 2 full days in a week. Everything is going okay and she doesn’t cry when we drop her off. Recently, some staff at nursery changed and I have seen older ladies who manage kids from afternoon to 6pm. I found my girl is being ignored or left alone to play by herself by new staff. She feels emotional and not connected well with them. I feel they don’t talk to her as previous staff. Also, one day they mentioned that they ran out of food and my girl wanted more. Can you imagine this after paying £76 per day? Another disappointment was when they mentioned blisters/nappy rash. My poor girl came with red marks and blisters. This happens only when poo isn’t cleaned on time. I remember we left it once for just 20 min and she developed red marks. They don’t give enough water too because my girl never ask for water by herself which she does after coming back from nursery. Should I raise these issues? I am only being concerned for my girl and others if this is the treatment they are getting at nursery because of poor management or supervision.