Hi @Stephenkoh ,
Unfortunately we can't help you with this request here in the public community because it requires sharing private information from your account. I've also removed your details from your post for security.
The good news is that it's easy to access past bills yourself.
If you log in to your AGL My Account page, and go to the Billing tab, you'll be able to access and download any of your past bills in PDF format.
If for some reason you aren't able to access them yourself there, just get in touch with customer service.