Strange as it may sound, but some organisation's refuse passports or driving licences in favour of utility bills with no photographs or information sealed in them. Apparently Utility bills are more secure, as it contains a name and address!.
You may also find that 'photocopies' are not excepted, yet some computer print-outs are. If I want to send any 'photocopies or computer printouts', to my local council, they refuse to accept them, unless I take the documents direct to the council and let them 'verify' the items.
Strange old world, isn't it?.