Unable to merge duplicate contacts

Hi

for some reason, in my Hebrew version, the option of merging duplicate contacts (https://outlook.live.com/people/0/) does not exist under 

settings, only export or import contacts appear there.

Tried a lot of things like signing out of my accounts, clearing cache and cookies from my browser, switching to another browser (tried Firefox, chrome and explorer) but nothing helped...

Thank you,

Yaron