Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do what I can to provide the right answer to your question.
I think you should, at once, contact your credit card co., and ask them about that specific item. They will be able to tell you what it is for.
If you need further advice, let me know.
(If the charge is by JustAnswer.com you might want to contact Customer Support at JustAnswer.com first. http://ww2.justanswer.com/contact-us )