what documentation is required to open a bank account

We are retired and opened a bank account a few months ago with Sabadell in Roquetas. We required passports and NIE. We also took along proof of address, a rental contract. Our pension is paid into this account direct by DWP in the U.K.

Thank you so much for your quick response.

I understand that the people in the Caja Mar, in Arboleas, are very helpful?