iCloud backup for whatsapp - previous, I see data on icloud, but due to encryption issue..

Dear All,

I had backedup whatsapp data accidentally as end to end encryption, recently damaged my iphone, had to re-install, on trying to restore whatsapp yesterday - i was asked encryption data, each failure my wait time was going higher, hence losing hope I by-passed the restore step which I suppose is one-off option (unsure why).

My bad, i backedup last night again.

Today I see that on my icloud whatsapp data of 65gb is available, but even after uninstalling and installing whatsapp - it's only giving me recent option

how can i restore my whatsapp to previous backedup as I use my phone for business and important messages unfortunately are in whatsapp

Any help would be helpful.