Hello michele milczanowski.
Welcome to Microsoft Q&A forum. It's my pleasure to help you today.
I understand that you'd like to know the support number of Microsoft. If possible, could you please share the issue you're having here so we can see if we can help you out?
If you want to contact Microsoft support directly, you can go to https://support.microsoft.com/en-us/contactus and log in with your account. I hope this helped.