Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Easier than?
A Google search for :
Microsoft USA support telephone number
(You can drop the USA as well)
https://www.google.com/search?q=microsoft+usa+support+telephone+number
Skip the results that are ads (they are not Microsoft results, may have "i" in the top right you can hover over and see "why these ads"..) and the very first result is that phone number.
If you utilize BING (drop the USA even, although results are the same) to do the same search
https://www.bing.com/search?q=microsoft+support+telephone+number
The results are even more obvious with that same number...
... but giving hours, a Canadian number and pointing out that it is xx-MICROSOFT (essentially, we all know that is too many numbers.)
In fact, probably one of the better places for contact information for Microsoft is actually:
http://www.thewindowsclub.com/microsoft-support-chat-phone-number
Unfortunately, after all that, that really has nothing to do with the entirety of this conversation concerning how to contact assistance for the fee-based "Microsoft Assure" program. :-)