How to reverse/undo a Move In transaction

We need to do a Member Move Out transaction without knowing the target address. We want to move the member back to their prior ward/address as they were moved into our ward by mistake. We have called the prior ward, but I don't think they can look up the address once the membership record has been transferred to another ward. Help!

Here's the exact details of the situation:
We recently had two elderly sisters' records moved into our ward. One had the last name of Glade, the other Gale. Both were moved to the same address. We went to the address and found that Glades live there, so that one is great, but they have never heard of Sister Gale. I think that the prior ward confused Glade and Gale and sent both membership records to the same address in error. Further, I personally know Sister Gale from a prior stake. She was very active and would greatly benefit from ministers. I think that she is living in a nursing home. I've tried calling her phone and it just goes straight to voicemail. There is no email address.

Thank you,
Brian C Palmer

Call GSD. They're the best chance of reversing the move and restoring the address.

Thanks, Russel. Sorry, dumb question. How do I look up the phone number of the GSD (Global Services Department?) I did a Google Search and it only came up with Meetinghouse Support phone numbers.