Not Receiving Emails -4th Day!!!

There is a growing amount of web based outlook.com users who are not receiving emails since Oct. 30. I am one of them. It seems that we all have a personalized domain from Melbourne IT. The Melbourne IT team are asking us to get our MX information from Microsoft for our account and provide them with this information. I have been receiving TERRIBLE support from Microsoft with them not having phone support and with them not responding to my support request logged over 38hrs ago, or the other messages that I posted on this community 4 days ago!!! My domain is: alphainvest.org and email is : *** Email address is removed for privacy ***    . Can a Microsoft moderator be kind enough to PLEASE help me get this information the domain registrant is requesting or fix my email account as I have been missing a ton of business related emails and this is getting unprofessional with my clients. Please dont reply back asking to check setting, junk mail filters etc. as it is not this.... The domain registrar is saying that there is a failure in the MX information, or whatever that is...

PLEASE ASSIST AM BEGGING YOU GUYS!

Thanks

MB