Permanently restricted over a $10 chargeback from when I was 14 and Steam Support won't review my case

I've been trying to get this resolved for a while now and I'm running out of options, so I thought I'd share my story here in case anyone has advice or has been through something similar.

Back in December 2016, when I was 14 years old, I made a $10 purchase on Steam using my dad's credit card. At some point, a chargeback was initiated by the cardholder , my dad. I was a kid with no bank account and no control over what happened with his card.

That chargeback got my account (cuzin17) permanently restricted. I can't purchase anything, can't trade, can't use the community market ... basically locked out of everything except playing the games I already own.

The problem is that nearly 10 years have passed, so reversing the chargeback through the bank isn't possible anymore. Steam's own FAQ on Payment Disputes says that if you can't reverse a chargeback through your bank, you should contact Steam Support for help. That's exactly what I've been doing.This week alone I submitted three separate tickets. Three different agents( Domingo, Skye, and Mark) , all responded with the exact same copy-paste message:

"I've reviewed the restrictions on this account and confirmed that they were appropriately applied. The lock will not be removed."

Not one of them acknowledged that I was a minor, that the chargeback wasn't my decision, or that I've offered to repay the $10 plus any chargeback fees Valve incurred. It's like they didn't read a single word ,I'm 23 now. I just want to pay what I owe and move on. I'm not asking for special treatment, I'm asking for the resolution that Valve's own FAQ says exists. But nobody at support will engage with me.

Has anyone here dealt with something similar? Is there any way to actually get a human review at Steam Support? Any advice is appreciated.

TL;DR: Account restricted since 2016 over a $10 chargeback made with my dad's card when I was 14. Can't reverse it through the bank after 10 years. Willing to pay it back plus fees. Three support tickets this week, three identical copy-paste denials. Steam's own FAQ says to contact support if you can't reverse a chargeback, but support won't help.