You can bypass the already used phone number message through different routes depending on your objectives.
To create a second account to use on PWS so that you have two active accounts, create a new account. At the “claim free trial step” which fails, contact PWS support via
[email protected] and let them know that you want a second user account. Please provide your first user account email and the second account email. PWS Support will unblock you.
To change the email address on your user account, do not create a second user account with the new email, instead, follow the directions in the article mentioned below:
How to change the email address associated with Pivotal Web Services PWS account
To reinstate an account that you have deleted in the past, create a new account and at the “claim free trial step” which fails, contact PWS support via [email protected] and let them know that you want to recreate a deleted user account. PWS Support will unblock you.