Unauthorized PayPal payments after Avast subscription cancellation

Hi,
I have recently been charged for Avast services by your company through PayPal for two services, despite having canceled all my subscriptions prior to that:

  • DRI Software 72.59 USD on August 17th (Invoice ID 97851681900)
  • DRI Software 41.31 GBP on August 26th (Invoice ID 98217110600)
    Both stated the merchant as being:
    Merchant
    Digital River Ireland Ltd.
    atlanticpaypalukSARLcs@digitalriver.com
    952-646-5037

Those payments appear in my paypal but not on my Avast profile. I have since unauthorised any payments to atlanticpaypalukSARLcs@digitalriver.com on my PayPal but would now like to recover my payments.
Please tell me what steps to follow.
Best regards,
Cyrille

https://support.avast.com/en-ww/article/Refund-request