There is the Mozilla VPN product https://www.mozilla.org/products/vpn/ that you can subscribe for monthly or twelve month plans. Mozilla would not bill random credit cards as the person needs to go about subscribing for the VPN service themselves. If a Mozilla VPN purchase was indeed made, then you can try and ask for a refund or cancellation. from the FAQ on https://www.mozilla.org/products/vpn/ <blockquote>What is Mozilla VPN’s refund policy? The first time you subscribe to Mozilla VPN through Mozilla’s website, if you cancel your account within the first 30 days, you may request a refund and Mozilla will refund your first subscription term. If you purchase your subscription through in-app purchase from the Apple App Store or the Google Play Store, your payment is subject to the terms and conditions of the App Store. You must direct any billing and refund inquiries for such purchases to Apple or Google, as appropriate.</blockquote> I have seen a few occasions where people for some reason thought the VPN service was free or had a trial instead of purchasing a subscription when they did it on Google Play or Apple store. Also this support forum section is for support of the (desktop) Firefox product as the correct place to get support for Mozilla VPN is by using https://support.mozilla.org/en-US/questions/new/firefox-private-network-vpn https://support.mozilla.org/en-US/kb/how-do-i-request-refund-mozilla-vpn https://support.mozilla.org/en-US/kb/how-do-i-cancel-my-subscription-mozilla-vpn