Locked out of my Xbox account and still being charged for Live subscription

For weeks now I have been locked out of my Xbox account (different from the account I am posting this on) and have tried countless times to get back into it to no avail. There has been unusual activity on my account, or my credentials are at risk, so I am prompted to change my password. The options are to request a code from my recovery email (which has been deleted in the past, so I don't have access), or if I don't have access to the email, I must fill out a recovery form of some sort (https://account.live.com/acsr). I have filled this out about 15 times, and I always receive an email along the lines of "Unfortunately our system cannot verify that you are the owner of this account." I also filled out an account suspension appeal ticket which also did not resolve the issue. I made the account maybe 10 years ago and I am trying my best to fill it out as accurately as I can, but am thinking I might've put a different birthday or something back when I made it for privacy concerns on the internet.

I took the next step after many attempts at filling this out and set up a call with an agent. When she called at an earlier time than I requested, I was at work and had to step out of the office to answer the call. The connection and quality of the call were very bad the whole time which was very frustrating, but ultimately we decided that she would call me back the following day and go through the form with me to figure out which questions I am filling out incorrectly. The next day comes and I see her trying to call me for about one second, and before I was able to answer, the call ended and I was not able to call back. I tried getting on the phone with someone else that night and I was told that the form was the only way for me to access my account and there's no line to call to help me out with this. After this, I kind of gave up, but tried once more talking to the virtual agent in the chat box online. Of course like every other time, I was given the same answers and conclusion: I would be locked out until I was able to fill out the questions correctly.

Fast forward to yesterday, I noticed I was charged for my Xbox Live subscription. So here I am, locked out of my account and still getting charged for a subscription that I would love to use, but am blocked from using. Their security protocols are locking people out of their own accounts and still charging them? From there, I requested yet another call with an agent to help me figure that out. The call was yet again bad quality and the connection was bad, making it hard to hear the agent on the line. Since I am locked out of my account and can't verify that I am myself, he said he couldn't refund me, but that he could cancel the subscription for me. After waiting on the line on hold while he was doing this, the call dropped and he attempted to call me back twice, but the call kept dropping. Normally I'd think this was an issue on my end, but immediately after since I was so frustrated with dealing with this, I called my bank to have them refute the charge and block any future payments to them. I was on the phone with them for about 30 minutes, and the quality and connection was perfectly fine.

Anyways, I am very frustrated with the customer service I have been receiving and I guess this is my last resort to figuring out my account before I fully give up on it. Am I missing something? A phone number? Another form? Anything is helpful at this point, I just want my account back.

:)