[CA] Chat AI Ask AG - Weekly payments since April on CC - Scam?

A user reports unauthorized weekly charges of $12.64 since April from 'Chat AI Ask AG' on their credit card. The charges appear under varying sources like g.co/helppay#ns and 'Internet Ns', with no subscriptions found in their Google account or Google Wallet. The user's bank and Google support have been unhelpful, raising concerns about potential fraud.