Aura Youth OP My superb skin false charges Internet

I ordered a $4.95 sample of one skin product, Aura Youth cream. I was not informed of any obligation to pay any additional charges ,or any future shipments or charges.

Subsequently, I found various charges under different company names on my credit card bill for the next 3 months, totalling approximately $500.00.

Two additional item that I did not order were mailed to me with no invoice, return address or paperwork.

Also no email was ever sent telling me of any agreement or future shipment.

I am in the process of disputing these charges through my credit card company. I am also returning the unused items that I did not order. 

When I called the phone number listed on my credit card bill, listed under a different name, they said they would refund only the last 2 charges.