Hi car_thief, I'm not blind, nor am I a patreon user, but I do have relevant professional experience that might be useful here. I don't want to detract from the topic of sharing experiences though, so if you (or anyone else reading this) aren't interested in hearing about how you can get a response out of Patreon, please skip the rest of this post. And obviously mods, feel free to remove it.

It looks like Patreon outsources age verification to a third party, which in no way absolves them of responsibility, but it might explain why they've been slow to reply. They previously entered into a digital accessibility settlement agreement the company reached with the American Council of the Blind which outlines exactly that obligation too.

A few questions:

• When you emailed them, did you use the subject line "Disabled Access"? It seems they require that, although the info is buried in the "Contact Us" section of their accessibility page. I just want to be sure you've not ended up in their spam folder.
• Did you submit the privacy request through their support form? If not, do you have the option (or ability, assuming it's accessible) to use their support form to get the suspension investigated? Choose the "I have a Trust and Safety question regarding my account." in the listbox. Make sure you use the exact same email address as your account, and include the info you provided here. It also has the option to include attachments, if you're willing to provide the photo you took of your ID. But please be aware that this is not guaranteed to be securely transmitted or stored. I personally would start with the info you provided here and get a response first before doing that.
• What region are you in? Depending on where you are, you might be able contact a professional body that deals with accessibility legal compliance, but it's very location dependent. Hopefully this won't be necessary.

I appreciate that this all asks you to do more than what you already have, and you shouldn't have needed to do any of it at all. If you are US based, you can try their phone number, but you shouldn't be required to do that either. They should have upheld their end of the deal by ensuring you had an accessible option.

I also think it's worth posting this on mainstream social media; companies like Patreon actively monitor large channels for negative user feedback. Complaining online often moves much larger mountains than you might realise, provided the complaint is somewhere they check. The fediverse certainly is not that.