Preauthorized payments: need to change numbers

[3012]

Where do I go to access my billing? This is so challenging to locate!!!!! Thank you for a quick response

[xray]

1. Click on the My TELUS link that's at the top off every page on the TELUS site.
2. Log in or create an account whichever is applicable
3. Click on the Billing tab
4. Click on View Billing for the account in question
5. Click on Manage pre-authorized payments
6. Follow the prompts