Hi
Found this informative link for you. Hope it helps
http://www.youtube.com/watch?v=6TF1DcpTgEQ
Also other user Comments for you.
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1) Sevillana is a part of the old name for Sevillana-Endesa.
2) Payment of Endesa accounts is by Direcr Debit or online through endesaonline.com; it is necessary to open an online account to use this facility. These are the only two payment options.
3) If you wait long enough you will get a registered letter from Endesa whereby the only payment option is via Correos. This normally occurs when they are about to cut off power to your home or have already done so. It will not however detail the bank account number. This information is private, just as yours is.
At no point in time will any company disclose its bank account details as a matter of course. If you were running a business would you? It's just too liable to hacking.
This is not just a Spanish thing it applies equally in the UK. Even UK D/D payments do not disclose the bank account number of the recipient unless the recipient chooses to reveal the information."
Good Luck
Regards