You can start a case here with product support.
https://support.serviceshub.microsoft.com/supportforbusiness
--please don't forget to Accept as answer if the reply is helpful--
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Hello. This is Do Kim.
I have sent an request for help regarding technical issue we are experiencing.
(Kritika:REBOOT client publishing by ALLM)
To get faster help, is there be any phone number or quicker contact address?
Thank you
Best Regards
Answer accepted by question author
You can start a case here with product support.
https://support.serviceshub.microsoft.com/supportforbusiness
--please don't forget to Accept as answer if the reply is helpful--
Hi,
For your demand, open a support ticket with Microsoft should be a more effective way.
https://support.microsoft.com/en-gb/hub/4343728/support-for-business