Best answer by mattj3135
As You've posted in the PayG+ section can I presume you use the app? If so please follow the below steps to update the email address yourself:
> open the app
>click account details
> under the section "login details" is the current email address, right to this is a little pencil sign,
> click the pencil,
> delete/amend the current email address displayed
> click save.
This should do the trick!
To get the email address that Boost use to send your account communications to changed, send them a message via Facebook, Twitter or email: firstname.lastname@example.org
Also please click the three dots at the bottom right of your original post, click edit and please remove your email address as it is personal account information in a public forum. TYIA