How do I contact Outlook.com legal department?

I have had enough of Outlook.com.

The administrators are causing me a loss of earnings by closing my account implying that my storage is close to its limit. But what is the limit? and what is my current storage level? 

I was a member of Hotmail Plus and by default, was transferred to Outlook Plus. I was led to believe that Hotmail Plus was virtually "unlimited" but that is clearly not the case with Outlook.com "plus".

I have requested that a representative of Outlook should make contact - but this is being ignored.

Does anyone have an address to which I can send legal papers - I think it is unacceptable that Microsoft can ignore complaints and cause my business harm.

The main reasons for me using Hotmail were a) large attachments could be sent and received b) "virtually" unlimited storage which allows me to use the Inbox and Folders as an easily accessible filing system during my travels.

Is there another email provider that can offer this service? - I am willing to pay for a reliable service.

Best regards

Disgruntled of Burton

PS Why is there no Category "Outlook Plus"?