Guy, sorry but I cannot guess what you may mean.
It will depend on several things. The best way is to ask the bank what they need and why. An NIE never needs renewing, nor does an EU Citizen Reg Cert. A passport is either valid or not,
If a person is not resident has a bank account, then they will have an NIE. That is a fiscal ID number. One needs to produce a cert of non residence every couple of years
If the person is resident then they will (should) have an EU Citizen Registration certificate (green A4 or credit card sized piece of paper).
If they are non EU nationals, then they will have a Residencia.
Maria has shown a link to form EX15, for anyone who needs to apply for an NIE. But as I said the number never expires, although for a few months a couple of years ago, the certicate only had a three month validity.