Recently accidently i deleted Volume from synology nas ( thinking that I am deleting LUN)volume was ext4 with RAID 1. Each hard disk is of 8TB.
This volume was having shared folder which was encrypted. I checked couple of forum which mentioned that if we create volume with same name, we can get data back so i created new volume with same name which turns out to be second mistake. Contacted synology support and they mentioned that creation of volume again made problem worse and cannot recover the data. When i ask if any third party software can recover the data they mentioned probably can try with photorec. Synology will not mention about software vendor name if they dont have confidence in them. So i was wonder with photorec its possible to recover the data? NAS has RAID 1, no data is writen on disk since i accidently deleted the volume. Any change to recover the data in which scenario?
If yes, how i should proceed with protorec meaning any specific steps do i need to follow?
I am in desperate need of recovering the data. Data is about 2.5TB

Looking for the help in desperate need. Thanks in advance.
Thanks
Govi