Azteco is a great service with decent privacy and security... but has VERY steep fees:

There's much cheaper options like buying gift cards and trading on RoboSats, Bisq or AgoraDesk https://www.athena-alpha.com/crypto-exchanges/

Azteco vouchers enable Machankura users to load bitcoins into their wallet without internet connection. The process is similar to recharging one's phone using a scratch card.

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