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Presentación y Pago Electrónico de Cuentas o Facturas (EBPP, por sus siglas en inglés)
I found that EBPP means Electronic Bill Presentation and Payment on Yahoo! I ran a search there and found several references. As with many translations of computer or tech acronyms, I suggest you place the Spanish translation followed by EBPP in parentheticals: Presentación y Pago Electrónico de Cuentas o Facturas (EBPP, por sus siglas en inglés). You may want to spell out Electronic Bill Presentment and Payment in a Translator's footnote. Check out the sites described below. Best of luck!