Just provide Bitstamp with IBAN and SWIFT/BIC (which predates SEPA) for your bank account and you'll be fine.
Oh gosh, i see no sleep for me.
IBAN is SEPA.
No it's not.
IBAN (1997) predates SEPA (2008).
IBAN is an "address system".
SEPA is a framework that uses IBAN to facilitate EUR transfer between countries in the "SEPA area" (28+4 countries, check wikipedia for the list).