e-NV200 help to disconnect

[alessioblaupunkt]

Urgent need to disconnect the big rear battery to spot weld the body
of this electric van, in the manual it is mentioned there is
a service plug on the floor on rear seats.
But NO!
There is nothing!
Had to remove the rear seats, there is a black metal bar under seats,
you could not remove easily the black bar, because two screws are
under a custom floor on the trunk, so remove this custom floor,
then a gummy layer on the trunk, then lift the carpet, now remove
the screws of the black metal bar, now you can remove the THIRD screw
of a round cover and guess what...
under the round cover there is nothing!

Called the local nissan dealer and he told "mechanic is not here and I don't
know if there is a procedure to disconnet the battery".

Go to hell!

[Meat-Head]

Ring dealer in next town. Nissan hq. Or even (local number NOT 911) local fire department

is there no other garage in your town trained fir nussan