It worked.

Went very smoothly, but I did pay a 29% premium/fee as it was a very small (test) amount, I assume. Azteco took 11.1% commission, Neosurf 7.7% and G2A 10.2%.

I simulated a larger buy and ended up with an estimated 19% premium/fee. Azteco taking 7.5% (estimation), Neosurf 7.1% and G2A 4.4%.

I think ATMs are cheaper. Directly buying Azteco vouchers where possible will also eliminate the third party fees of G2A and Neosurf.

Interesting experiment but way too expensive compared to ATMs or p2p platforms.