I can't purchase a Substance 3D Collection subscription. I don't know where to get help.

So, I initially tried to contact Adobe Support about my issue, but it turned out that the online support is now handled by an AI. I explained my problem, and the only response I kept getting was: “Sorry, I don’t understand.”

I’m writing here because I genuinely don’t know where else to ask in order to resolve this issue.

The issue:
I need to purchase a subscription for the Substance 3D Collection. However, whenever I try to pay with my Visa card through the website, I receive a red error message saying:
“We couldn't process your payment. Please check your payment details. If the issue persists, try another payment method or contact your bank.”

The confusing part is that earlier in November I successfully paid for my Photoshop subscription using the same card without any issues. I thought the problem might be on my bank’s side, so I asked a friend to try making the payment using a different card from a different bank. The result was exactly the same — the identical error message.

Country: Uzbekistan.
I have no problems paying for subscriptions on any other services. This has never happened before — only with Adobe.

Please help, or let me know how I can get in touch with real human support instead of the automated AI system.