Anyone with available vials of Donor 2750 for transfer?

I know it's a long shot, but thought it couldn't hurt to try. My partner is expecting with vial from 2750, due July 1st. We would like to get more vials, for future sibling. However this donor is no longer active. We are on the waiting list. But, I wanted to be proactive and solicit to the board in the event anyone has a vial or two they would be willing to transfer. Any prep type would be fine. Thanks!