I'm sorry to hear that Yola isn't suited to your needs.
To delete your account:
1. Log into your account.
2. On the "My Sites" page click on the link that says "Edit Profile".
3. Click on "Delete my account", this is a red box on the right hand side of your screen.
4. Click on "OK" and your account details, and any sites you created, will be permanently deleted from our system.
Please get back to me if this does not work for you. If you are willing to share with us why you have chosen to close your account, we would be most grateful for your feedback.