wrong i just was on the chat...
here is how to do it
upper right click help
ask question in box how do i contact microsoft support
next ask question how to get arrows back in outlook mail
then at bottom click yes or no to chat with microsoft
if you can do all that here is the link to chat with them..I just went thru it with guy i'll post his responses to me...summary they are beta testing upgrades…he took my put arrows back bunch people unhappy…to me the words previous or next do same as arrows are ok but slower you have to scroll the opened mail a bit to get the words instead of faster just clicking the arrow..
here is link to support he gave me although i don't see outlook listed you may get through choosing another like windows
https://support.microsoft.com/contactus
his chat responces:
I would like to inform you that this is the new and updated interface of Outlook.com webmail. This has been done to maximize the features and action of the Outlook webmail. It has also increased the performance of your mail server. Now, the delivery of your emails will be much faster than before. This has been done for the betterment of your mail server.
these changes are for testing phase and for temporary period of time.
I would request you to please check the bottom of the Outlook webmail interface. You will get the Send option