There were multiple charges to my account. Wondering what they were for and how to get them reversed.

I show 6 different charges for $7.99 on my account. All charged on the same day over the weekend. I was told by Hulu that my account had been closed when I never closed it. I re-opened it and have since been charged twice by them and the other 4 from iTunes. I'm assuming be re-subscribing is where the mix-up happened. Please let me know who I can contact to reverse the charges and straighten everything out.

Thank you in advance.

Katt