> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.worldline.ca/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How do I update my account details (email, phone, address, account holder)?

## Email address or phone number

Call **1-855-299-0025** — these can be updated right on the call, any time, once we've verified your identity. Keeping your email current matters: it's where your invoices and portal access go.

## Mailing / billing address

Address changes are handled by our team — call us and we'll take care of it. (The portal doesn't currently support changing your address yourself.) If you're moving your **service** to a new address, that's a different process — see **"I'm moving — can I take my Worldline service with me?"**

## Name changes and transferring the account to someone else

Changing the name on an account is a **transfer of responsibility** and is handled by our billing team:

- The **new account holder must speak with us directly** to confirm they're taking over the account (and any balance on it). Until then, responsibility stays with the current holder.
- **If the account holder has passed away:** email a copy of the death certificate to **billing@worldline.ca** and the team will take care of the rest — see **"What is the cancellation policy?"** if the account is being closed instead.
- **If the account holder is incapacitated:** email us a copy of the Power of Attorney and the team will assist from there.

## Adding an authorized user

To add an authorized user to your account, email **billing@worldline.ca** from the account holder's email address and the billing team will set it up with you.

For now, call **1-855-299-0025** and the team will help.