Destination Wedding Booking Help!

I have a bit of a touchy subject and long post. So my TA’s husband died recently (super sad and unexpected). She emailed me to let me know and that she would be taking a leave of absence but that she would have someone step into help. My cousin wanted to make a payment towards her room so she emailed the temp TA and she responded right away asking for her contact info, good, right? My cousin texts me a few days later and said the woman never called her. I email asking the temp TA if she had reached out to my cousin, no response. So my dilema is that my invites are supposed to go out within the next week, what would you do regarding people who haven’t already booked that need to with an unresponsive TA?