Achievements for the game don't seem to be unlocking, anyone got any advise ?

Are you connected to internet? XOne achievments aren′t unlocked off-line.

I'm connected to xblive, tried resetting my Xbox, deleting and reinstalling my account, ring Xbox help twice and they said contact Bethesda -.-

I always said that Bethesda is driven by Sheogorath!

If you look at your achievements list for Fallout 4, do any of them say "Unlocking..." with a blue bar under them?

I had a few like this that took a few days before they finally unlocked.

Nope, all locked, on Xbox.com it even says I've never played fallout 4 and it's not on my games list; even though I'm level 103 lmao