Customers with expired/no Support contract
If you have no current Support contract you cannot log a case to SDL Support. For Translation Productivity products only, if your issue is regarding installation or licenses, and you have not been (sufficiently) helped by the Knowledge Base, you can complete a web form to log a free case without having purchased a Support contract.
A link to the form can be found in the green Trados Studio Licensing Help link in the top menu of the SDL Customer Gateway, or at the bottom of Knowledge Articles concerning Translation Productivity license and installation issues.