The Runtastic app automatically chooses the twitter account which has been added last in the settings of your phone.
Therefore, please try the following to connect your Runtastic account with the correct twitter account:
- Disconnect your Runtastic account and the Runtastic App from the currently connected twitter account.
- Delete all your twitter accounts from your phone (in your phone settings)
- Restart your phone and set up all your twitter accounts in the phone settings again, making sure you add your preferred twitter account last.
- Try again to connect your Runtastic app with the twitter account.