If you are denied access to your Bigpond account due to password issues, the Bigpond Password Recovery Number offers users a direct channel to progress. When you call about a password issue, you will need the Password Recovery Number, which normally facilitates security checks.
For privacy purposes, you will be asked to confirm your identity when making a call to the Password Recovery Number. This might include providing answers to questions set up to protect the account from intruders or validating other details related to you. After verifying your identity, the customer support agent will instruct you on how to change your password. They can also provide tips on creating a strong password and advice on securing your account against future security threats.
The purpose of this service is to allow the user to regain access to their account as quickly as possible while preventing any possible violation of the confidentiality of the end user’s information.
If you fail to reset your password online, don’t waste time; use the Bigpond Password Recovery Number found on the Telstra support page instead of struggling. This way, you get customized assistance as soon as possible and in a safe manner.

More Info: https://www.bigpondonlineservice.com/blog/how-to-reset-bigpond-telstrausername-or-email-password/