Go to TWEN Support Center: https://legal.thomsonreuters.com/en/support 

There are two ways to contact TWEN tech support: 

1. Live Chat

2. Phone call: 10-800-120-0157 (toll-free number calling from China)

Note: If the you successfully reset their OnePass password and still have difficulty getting signed into Westlaw or TWEN, please request your username, because this is the most common error after users reset their password. If that is not the issue please contact support via phone. As long as the user knows the answer to their security question we will be able to assist them over the phone.