Miscellaneous topics that do not fit into specific categories.
This forum is a user to user forum, no-one here can reconnect you to your support case with Microsoft support, the only way to do that is to contact their support again and quote your existing support case reference number.
In the meantime, what problem are you experiencing with the Microsoft 365 apps, is it s problem with the apps not working correctly, or a subscription problem, and are you using the Office apps on a Windows PC or Apple Mac computer, also, please provide a screenshot of any error you may be seeing.