Replied to Emily reminding her of my previous agreement to her proposed timeframes:

On 5/31, I replied to you with this regarding your proposal for Wednesday and Saturday after 5pm Pacific:

Our agreement was for two 10-minute calls per week. Your days and start times seem reasonable pending any changes in Ambria’s schedule. We’ll cross that bridge when and if we come to it. Since I received this information too late to arrange a call today, we can start this Saturday at 5pm Pacific if Ambria is not already visiting with you at that point. Please allow us some flexibility with this schedule since we are trying to care for a family here. We’ll make 5pm or let you know we need to change it when we can’t.

Assuming you’re willing to be flexible to accommodate changes in Ambria’s schedule and to work around her other activities, I’m fine with the times you’ve proposed.

The latency of her reply and her lack of action shows me her level of commitment to her daughter hasn’t changed much since the 4 years when she wasn’t around.