In English and French: MK Net.Work Z-OptimiZr for SharePoint Support:
Z-OptimiZr for SharePoint Support
In German: Z-OptimiZr for SharePoint Competence Center - Germany:
Z-OptimiZr for SharePoint German Support
Phone support is reserved for customers having an existing maintenance and new version subscription contract or prospective customers needing assistance.
Although your phone calls are welcome, our support centers are more efficient when they receive an email containing all the information connected to your question.
Phone support is generally used for very urgent problems or problems that cannot be easily solved by email.