How to connect with CA Lisa team to open a support case for CA Lisa 7.5.2?
Lisa 7.5.x support ended on June 1, 2016
End of Service Announcement - DevTest Solutions - 9.5 - CA Technologies Documentation
Please contact your CA contact to discuss upgrade options
Yes, 7.5.x is end of life. You should upgrade to a supported release.
But to open a support case:
CA Support Online
If you are not Registered choose the Register link.