These were the events that lead to the response I quoted:

After seeing several mentions of Azteco in your typical how-to guides for obtaining non-KYC bitcoin here on SN and elsewhere, I decided to try them out.

At the time (around a year ago if I remember correctly, could be a bit earlier) the only option I could find to obtain Azteco vouchers without KYC, was to buy a different brand of gift voucher with cash from a local grocery store that sold them. The store had no knowledge of bitcoin, but the brand, 1Voucher, was listed on the Azteco website as being redeemable for bitcoin.

One could also buy Azteco vouchers via a number of other payment options, but those (again, at the time) all required KYC, so I wasn't interested in going that route.

So I bought a "test" 1Voucher for a small amount and easily and near instantly redeemed it on the Azteco website for bitcoin - although the Azteco fee did seem somewhat excessive. Great, what could go wrong?

Rinse and repeat weekly, slowly increasing the amount of each cash purchase & redeem cycle.

Then I reached the limit of what the grocery store could process for a single 1Voucher. Which was still a rather insignificant amount, by the way.

Then by around voucher 5 or 6 in as many weeks, suddenly the Azteco website would not redeem the voucher. OK, that's odd. The error message does say to "please try again later", so maybe they're having some technical issues, right?

Except, it never got resolved regardless of the number of retries. Which is when I decided to "Contact support" as listed on the Azteco website to find out what the issue was.

Azteco "support" advised that I should use one of the other payment options available. When I stated that those options all require KYC, I got the response I quoted earlier. I stopped communicating with them at that point.

I only discovered afterwards that the name of the Azteco support person was the same as that of the founder of Azteco.

Yeah, I don't think this is for Americans.