how many other quiz results are there for that quiz? The percentile is the comparison to the rest of the scores with other users. So say you score an 80% and no one else scores above 70%, you're in the 100th percentile even if you didn't score 100%
If you want to remove it I can give you instructions on how to do that.
I would need acp access to look at the credits problem.
For security reasons, we recommend you create a new AdminCP account only for DBTech support, then disable or delete it after we have both confirmed the issue has been solved and there are no further issues. It should ideally be a temporary account created for us only. If we have created an account on your site already, you can optionally boost that account to Administrator and then de-admin this account once the issue has been solved.
If you use a .htaccess password protection for your AdminCP directory, it is recommended that you create a new authorised user for DBTech and remove this user once the issue has been solved.
Please test any temporary accounts you create to ensure that the AdminCP account can access the administrative controls for the product we are assisting you with.
Ensuring this is all in order before submitting the information will significantly speed up the process of assisting you. We will alert you via PM if there's any issues with the login information you have provided.
When sending the PM, for your security you should also un-tick the "Save a copy in my Sent Items folder" checkbox. When the access details have been received, we will delete the PM from our inbox. Ensuring you have not kept a copy of the PM reduces the risk of security breaches.
Thank you for helping us debug our products and allowing us to assist you, we appreciate it