Ask GMAT Experts | Need Advice Urgently

Hi,

Please help me in taking the right decision.

I took the GMAT test yesterday and it went disastrous (670-50Q ,31V). Although I accepted the score at the test center, i'll be retaking the exam next month as i was aiming 730+. (scored 750 on the last Gmat official mock and the least score was 690 at any mock test i gave)
Need help in deciding whether should i cancel my score online and then retake it or should i keep this score and then retake it ??

Any help would be appreciated. TIA

---