SEPA is a payment system created by the European Union. It provides a set of tools and standards to facilitate euro transfers between European banks. SEPA is approved and regulated by the European Commission. One of the features of the SEPA payment system is instant payments. SEPA instant transfers are processed around the clock, seven days a week, including weekends and holidays. Payments are sent if the sending bank and the receiving bank are members of the SEPA Instant scheme. If you want to buy bitcoins through SEPA, then you can do it here https://trastra.com/coins/buy-btc-with-sepa-transfer/ . In my opinion, this is the most profitable option that is currently available.