I have been charged 79.99$ from my Visa credit card and would like to know what I accidentally bought?

Hi serafimn,

I undestand that you are facing with big problem. That's why I am here now. Hope I will help you.

Here is article for you: See your purchase history in the iTunes Store on a Mac or PC - Apple Support

Hope you will find that article helpful. If not, hit on reply and give me more information.

Kind regards,

Marijan.

Have you checked with your credit card company to see what that charge was for? I would do that first; if they say it was Apple, then check your purchase history.