Will not restore app

I used this app with my first pregnancy and now on my second I was going to use it again so I went and downloaded it and it will not restore my previous purchase. Ive emailed support to get no reply Plz fix and Ill change my rating!

Decembermommy about Flutter | Baby Heartbeat Monitor - Doppler Baby's Fetal Heart Beats in Pregnancy Free Obstetric Stethoscope or Ultrasound when Pregnant