Dear @Anonymous,
Welcome to the Community !
I have edited your post to remove your serial number. Please note that serial numbers should not be posted on this public forum, as this is confidential information.
E-mail address authcodes.neu@autodesk.com is no longer active. To get support, please go to Contact Support - Activation & Registration, then ask AVA (our Virtual Agent). If AVA is unable to activate the software, it will automatically redirect you to the Registration & Activation team, either via Chat or Web. They should be able to help you activate your AutoCAD LT 2002 manually.
Regards,
Simona Golisciano