Victim of a SIM port attack

Hi Outlook,

Ive recently been the victim of a SIM port attack and I really don't know how to contact you to shut down my email accounts.

If you'r unsure of the details of a SIM port attack please have a look online, but as a brief explanation, the hackers convince my mobile provider that they are me via a telephone call. They then explain that they have lost their phone, but bought a new one and need the old number transferring to the new device. The mobile provider agree to swap the number to a new sim, and hey presto, they have access to your phone, which in turn means they have access to your emails, and other very important accounts such as banking etc.. 

I have already had my coin spot account drained and the hackers have control of my hotmail account. I can access the account but it is no longer receiving emails. Its like they have deflected emails to a different address somehow. Anyway I want to know who to contact or how I contact Microsoft so somebody can look at the activity on the account and put a stop to this. 

The longer this goes on, the longer the identify theft goes on and the more at risk I am to loosing even more money.

Please help I am at my wits end!

Alex