If this is on a Android phone or tablet did you try to install Mozilla VPN which is subscription based? They also have subscriptions for Firefox Relay Premium and MDN Plus though Pocket is discontinued and Mozilla Monitor Plus is shutting down December 17. Hard to say what $47 could be though Firefox Relay Premium could be a possibility if you ordered the $3.99/mo yearly to be $47.88. https://relay.firefox.com/premium/#pricing Though if you did subscribe to something then it may be listed in https://accounts.firefox.com/settings#connected-services as Mozilla Accounts are used for these services https://support.mozilla.org/en-US/kb/access-mozilla-services-firefox-account#w_what-services-can-i-use-with-a-mozilla-account If you did subscribe to something then there are these support ticket forms https://support.mozilla.org/en-US/questions/new/relay/form https://support.mozilla.org/en-US/questions/new/mozilla-vpn https://support.mozilla.org/en-US/questions/new/monitor (Monitor Plus ending on Dec 17 though) https://support.mozilla.org/en-US/questions/new/mdn-plus/form https://support.mozilla.org/en-US/questions/new/pocket/form (It shutdown on July 8 though) Or if this charge was by donation then see https://www.mozillafoundation.org/en/donate/help/#frequently-asked-questions and https://www.mozillafoundation.org/en/donate/help/