If the guitar is an authentic Norma, its pretty old

they stopped making normas in 1971
i have one, they’re a nice guitar,

the only reason the string action would be too high is if its been left unstrung or with the wrong kind of strings on it for too long, because for some reason the neck on Normas bows easy
and even if it was, its probably fixable.

id say its a good deal

you certainly werent ripped off