Ok, this is what I did, I installed a couple of Buck & Boost Step-Up Transformer and now voltage is 240V steady, still not working.
Facts:
Leaf charging at home with L2 Nema 14-50 240V 50A.
Leaf not charging at work with L2 Nema 14-50 220V 50A.
Tesla charging at work with L2 Nema 14-50 220V...