Welcome to the Community!
I'm sorry to hear you are having troubles accessing your bill. Can I confirm with you this is definitely an email from AGL? It sounds strange the email is distorted, and we have had notice there is a hoax email in circulation. If you are concerned this is not an email from AGL please follow the instructions in the link above. Let me know.
Alternatively, you can log into My Account to view your current bills.
Welcome to AGL community!
I am sorry to hear our online systems are not working for you, I will provide that feedback.
For now, you can submit a payment here, or alternatively through the AGL My Account or AGL App.