Unfortunately, OneMain Trim accounts can only ever be associated with one phone number, and for security purposes, we cannot change the number on the account it at this time.
Once logged into your account by sending the verification code to your email address, you can change your phone number at https://go.asktrim.com/sms and completing the verification process.
On the other hand, we can change your name and your email address on your Trim account.
Our Support team needs to do this for you, so please send us an email at help@asktrim.com to change your name or email address, or to delete your account connected to your old phone number.