BioLife Plasma Services review: Employee's unprofessional behavior

I would like to formally make a complaint against employee Elizabeth. I am a frequent donor and on today I finished my donation and I was patiently waiting to be disconnected. In my section I finished first, then two other donors finished after me. Elizabeth skipped me, and went to disconnect another donor. Then she skipped me again, and went to disconnect another donor. I politely asked her, are you skipping me? Then I asked, can you tell who finished first? She responded no, and then went to say that I'm always rude to her when I come in, which is not true at all. Her response confirmed that she was purposely skipping me because she felt like I've been rude to her in the past. She has drawn me in the past a few times and has messed up my arm, and missed my vein every time. I complained that she needs more training, and I even told her in a constructive way, that she is "nose diving" her needle and that her angle is completely off. I've never been rude or disrespectful to her. One time I asked her to double wrap me, and she had no clue what I was referring to. So I ended up bleeding all over the place on my way out because she refused to listen. So on today she was very unprofessional by arguing with me back and forth, talking bad about me that I'm a frequent donor and that I need a job that's why I am there so often. This is unacceptable behavior to me and donors should not have to tolerate this from anyone. I am nice to everyone there. If she is unhappy with her job, she needs to find another one or just improve her skills and get better!