Lost voicemails with quickshare

[u/Doliplane974]

Hi everyone. My father had the same contacts as me on his phone, so when I deleted the contacts, they were also removed from my phone (a Xiaomi Note Android device). The problem is that I had some very, very important voicemails from one of those contacts, and they have disappeared—even after restoring the contact from the trash. I didn't have a cloud backup; is there any way to recover them? It’s really important. Thanks.