sadiki,
that’s typical from nss guys ! it is a behaviour they must learn during their trainings…
you : “hey guys, there is a problem in your MSC’s definitions !”
them : “no no, we checked everything already, it’s all good”
you : “oh ok, nevermind then. you sure it can’t be a wrong LAC definition ?”
them : “no, no, don’t worry, all is fine”
2 days later, spending nights checking your BSS:
you : “hey, guys, it’s working now, have you changed anything ?”
them : “yeah, there was a little mistake in a LAC definition, but don’t worry, now it is fixed. You must not worry about this”
you : “GRRRRRR” (you become a werewolf and eat them alive)
again, i don’t want to be a wise a$$, but it is always the same scenario, over and over, all over the world.