WhatsApp backup not deleting from iCloud

I have an iPhone 12 Pro max

When I go to settings - I cloud - manage account storage - whatssapp - delete data from iCloud - permanently delete - nothing happens

I have 2 iPhones backed up to WhatsApp - I don't want to have any back ups

I have turned off auto back up on both phones.

I am not being able to delete the data. How to delete the data?

after pressing delete several times - it says that data is being deleting from crowd - but nothing happens. I have waited for more than 24 hours yet it is not being deleted. when I go to WhatsApp it gives me the option to delete again yet nothing happens.

Can you help???