My company, Enterprise account for Office 365 overrides my personal account login.

First of all, I know that this forum is for peer-to-peer support, but since Microsoft is making it so difficult to find a link to contact support directly, I hope that someone who actually works in Microsoft support will see and respond to this post. For all others, please excuse my frustrated directness.

I have an MS365 account for large Enterprises, that is on my company laptop. I ALSO have a personal Office 365 account installed on my personal computer. I want to receive my company emails on my personal computer, but I do not want to directly access my OneDrive, or any other applications associated with my company account. If I open any office application running on my personal (not the web access one), it automatically logs me into my company account. If I close everything and log into my personal account on any application, every few minutes, it prompts me for my password for my company account. If I enter it, it again changes every app to the Enterprise account. If I do not enter it, I cannot receive company email in Outlook. This is an ongoing problem that I have spoken repeatedly with Microsoft Customer service. Every time, it ends with them telling me that I have the Enterprise version of Office 365 installed. Their solution, every time, is uninstall all Office Apps, Download the personal version (they even give me a direct link), and then log into my personal account, which entails reconfiguring every single option on every single application and waiting for OneDrive to realize that all of the 1000´s of files it´s trying to syncronize are already done.

Days later, when I finish, all works well for a few days and just like magic, suddenly, the installed version has gone back to the Enterprise version and all my applications are reopening my company login.

I have three questions:

1. How do I, without uninstalling, reinstalling and spending days reconfiguring everything, get back to the personal version of office365 that I have paid for and most importantly, prevent it from changing again?
2. How can I, without triggering a shift from my personal account to my company account, include my company email and calendar in Outlook?
3. Why does Microsoft say that a personal account offers direct customer support, when it is virtually impossible to get to it without 30+ minutes of checklists and flow charts that no only don´t relate to the question I have, but also keep running me around in circles?

Thank you.