I'm not sure what test your DD took. My DD is a gifted dyslexic and still scored in the 98th percentile for verbal comprehension on the WISC-IV. It was much lower than her PR score but still moderately gifted. Her achievement scores on the WJ-III highlighted her dyslexia with reading scores in the 50th to 60th percentile range and an individual subtest score in spelling in the 3rd percentile (no, that is not a typo)
Did the school tell you what tests they gave her? IQ? Achievement?