I am getting charged for things I do not know what is for and cannot get in touch with anyone to explain them?

The purchase history lists everything you are being charged for. How can that not help? If something isn’t on that list then it wasn’t Apple who charged you for it.

However, here is the contact for iTunes store support (assuming it was an iTunes or app purchase—>iTunes Store - Contact Us - Official Apple Support

Use the contact support link at the top of the page.

You can use the contact support link at the top of the page to contact Apple. Or, see if this helps: https://support.apple.com/en-us/HT204088