Can anyone can tell me how to delete a Harvest account?
Go through the following:
You'll come to a page entitled, "Hold or Remove Account"
There's a short survey/feedback for you to fill out but from there you can suspend if you fill out the Put Account on Hold section.
To delete or close out your account, just use the Permanently Remove Account section and you're done.
Download your data before you do as that is toast when you delete your account.