In a similar situation. A quick background about me.
disappointing-gmat-score-need-some-suggestions-164400.html Prepared for another month and took the GMAT again.
Exactly same score, with exactly the same sectionals in all three parts - 700 (Q49,V35, IR7).
Was shocked. Had attempted all questions in Quant after solving. Was expecting minimum Q50.
Also, was scoring decently well in the practice tests I took this time around.
Veritas Prep 2 - 740 (Q50,V41)
Veritas Prep 3 - 780 (Q51, V46)
Veritas Prep 4 - 740 (Q50, V41)
Veritas Prep 5 - 770 (Q51, V44)
Veritas Prep 6 - 770 (Q51, V45)
Princeton Free Practice Test - 740 (Q51, V42)
GMAT Prep 1 - Retake 2 - 780 (Q51, V48)
GMAT Prep 2 - Retake 2 - 780 (Q50, V47)
(You could discount these score conveniently as these were 2nd retakes)
Not sure what to do?

Feel I could cross the 750 mark and target good bschools with a decent score in hand, but GMAT is proving me wrong over and over again...

Have written them a mail. We keep posted in case they reply.