Unauthorized DramaBox Charge

I am seeing unauthorized charges from Dramabox on my Discover card, even though I have never created a Dramabox account, signed up for any subscription, or authorized any payment to this company. On my card statement there are two separate charges from Dramabox for $16.19 each, dated July 2 and July 9. I only noticed these charges on July 11 while checking my account activity. I did not make these purchases, and no one else has permission to use my card. I contacted Dramabox about these charges but have not received any response so far. I am very concerned that my card is being billed for a service I never requested or used. I request that the unauthorized charges from July 2 and July 9 be fully refunded and that any existing Dramabox subscription or payment agreement tied to my card be immediately canceled. I also ask that no further charges be made to my card, and that I be informed by email about the actions taken on this issue.