For contract the Blue Account Online + debit card without fees need have at hand...
Your cell phone
So that you can sign your contracts via SMS, conveniently and free of charge.
If you want to identify yourself without having to go to the bank, you can do so by telling us the account number of an account you hold in another bank. We will only use this account to confirm your identification.
Your DNI or TIE
You can also choose to upload a picture of your national ID card (DNI) or foreigner's ID card (TIE) to help us confirm your identity faster.