Outlook.com/Hotmail – can’t use at all

I can sign in and my inbox comes up, but I cannot use it at all. I can't open or delete emails. There are no error messages. Nothing happens. This has been going on for four days. All other sites work as expected; there is no problem with my connection. There is apparently no way to get help from Microsoft and I have important emails I need to open. Can anyone please tell me how to get help with this from Microsoft?