Delisting a Coin after Crossover

Zohar

I was wondering if there is a way to "delist" a coin from PCGS or NGC after it was once graded by them, "cracked open" and re-submitted to the other grading service.

The idea is not to have the population report include this coin as well as the cross-over company pop report thus creating a double count of the same coin.

If there is a process for this, it would be helpful knowing about it.

Thank you.

WWW

I mail the "cracked" certification slips back to the corresponding grading service.