Foreign Birth Registration - what documents are accepted as 'proof of address'?

My brother and I are eligible for FBR (granddad was born in Ireland), and we have most of the documents sorted out already, besides '2 separate original proofs of address'.

We both have some physical bank statements in our names, but, long story short, we don't have utility bills/physical copies of other bills in our names. However, we have some other stuff that may or may not count, but I wanted to check in advance if any of these would be accepted:

• Letters from the NHS
• Electoral Services letters (letters confirming acceptance of postal vote application etc)
• Printouts of letters sent electronically (such as letters regarding insurance etc)
• Letters from Student Finance England
• etc

thanks in advance.