VivaVideo Refund Request for an Unauthorized $28 Charge

I downloaded the VivaVideo app and started a subscription approximately two days ago. Shortly after purchasing the subscription, I noticed that $28 had been charged to my card without any clear notification or confirmation screen informing me of this charge. Even though I specifically checked whether the subscription had been canceled, this amount was charged today to my Mastercard ending in 3558.

As soon as I noticed the charge, I contacted my bank, explained that I believed the charge was unauthorized, and filed a dispute. I also immediately deleted the app from my phone. However, I have not been able to find a direct way to contact VivaVideo and clearly initiate the cancellation and refund process.

I request that VivaVideo refund the $28 charged to my card without my authorization or without sufficiently clear disclosure and completely cancel my subscription. I would appreciate having this issue resolved as soon as possible.