Is this a true iban

No you have NOT won a large sum of cash nor have a rich relative that has recently passed.
This bank is often used to legitimise such scams.

This bank account is supposed to be a loan company? Is it in Spain?

Seriously HUGE SCAM !!!
You do NOT need to pay any up front fees for this type of service, ever.

La Caixa Bank

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La Caixa Bank was referenced in unsolicited emails that appear to be fraudulent or bogus. La Caixa Bank, the Spanish bank, is almost certainly not involved nor likely to approve the use of its name in the e-mails. Scammers often use the names of legitimate banks, companies, governmental agencies and other organizations to make their claims seem legitimate. This site contains a large collection of fraud and bogus emails that attempt to scam the recipient into sending money for non-existent fortunes, inheritances, cases of money, business partnerships, lottery winnings, etc. Don't be fooled by official looking documents (e.g. phony governmental certificates, checks and passports) as scammers make a living forging these things. If you get an e-mail that is similar to one in our collection, you should delete it. Do not give out personal information such as bank account information or your social security number. NEVER pay any fees of any kind. You may want to visit other sites to learn more.

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It a SCAM, do not fall for it!!