Mexican users can buy Ethereum directly using SPEI (Sistema de Pagos Electrónicos Interbancarios). https://paybis.com/buy-ethereum-with-spei/ enables instant transfers from your local bank – no card needed. Process: enter ETH amount, provide your wallet address, complete the SPEI payment through your banking app, and receive Ethereum minutes later. First‑time buyers get their Paybis fee waived. KYC takes under 5 minutes, and up to $1,000 requires no ID. Regulated, with 24/7 support in Spanish and English. For investors in Mexico who prefer direct bank transfers over cards, SPEI is the cheapest and fastest way to build an Ethereum position.