My kitten got a second flea treatment (too early)

I'm hoping someone can help. My kitten has been sick so I took her to the vet today. They said she had a cold and roundworms, well they gave her a few different medicines and some fluids, and during all of this they put revolution on her. They didn't even tell me what it was until after they put it on her. The worry is I literally just put advantage on her EXACTLY one week ago, so I was freaked, told them I just flea treated her a week ago and asked if she would be okay. They said she should be, which honestly isn't good enough for me and I'm mad at them for doing that without even asking me first. What do you guys think, will she really be okay? And what should I look out for just in case?