Here’s what I recommend: sign in at https://account.microsoft.com using the same credentials tied to your billing card. Under Services & subscriptions, you’ll see all active subscriptions. From there, you can identify the product and cancel it if you no longer need it. You can also review your billing history to confirm what the $6.73 charge is linked to.
If you don’t recognize the subscription or cannot access the account, the next step is to contact Microsoft Support directly. When you reach the automated system, ask specifically for “billing support” and request to speak with a live agent. Providing proof of the charges (such as a bank statement showing the transaction ID) will help the support team locate the subscription faster.
It’s important to note that refunds and cancellations can only be processed once the subscription is identified and verified against your account. If you were promised a refund but did not receive it, support can re‑check the case and ensure billing is stopped.
I hope the response provided some helpful insight. If it addressed your issue, please consider marking it as Accept Answer so others facing the same problem can easily find the solution. If you need any further assistance, feel free to leave a comment.
Jason.