You can go here
https://48.ie/my48/transactions
And select Download Transaction Receipts but, unfortunately, they don't include the member's postal address.
You'll have to contact 48 support to see if you can get something with your address on it, but I suspect that you may have to use a different bill for bank purposes.
While you're here, check out our "Featured Topics" below.
Our Troubleshooting Guide and Knowledgebase contain help and support articles and popular questions to help you as a 48 customer.