is there any way to recover lost or deleted whats backup file which is stored in iCloud Drive
If the app was storing the files in iCloud Drive, use a computer and log in to https://www.icloud.com/ and then click the Settings app there and click "Restore Files" in the Advanced section at lower left.
but there is nothing showing i have to recover whatsapp backup file which i uploaded few months ago now where i get that file in icloud drive.
Deleted files are only kept for 30 days. Beyond that time there is no way to recover them.
but the the backup file was there till yesterday noon after that i will not seen any where . the backup was uploaded on 27th March 2016 & its size was 132 MB. i need that file please help i need it very badly.
The only other thing I can recommend is that you contact Apple: Contact - Official Apple Support
is there any way to chat live with apple customer support team
If you use the link below, sometimes you can get to a live chat option, but it isn't easy.
Recovering app backup files which are accidentally deleted in iCloud Drive
