For contract the Blue Account Online + debit card without fees need have at hand...
Your cell phone
So that steady comodamente your contracts via text message free.
If want identify yourself without have to go to the office, can do it pointing out the number of account of the one which are account holder in another bank. Only use this account for confirm that you are you.
Your DNI or TIE
Optionally be able to go up the image of your ID Or TIE for expedite your identification.