Client ID: localhost
Secret Key: E9300DJLXKJLQJ2993N1190023
Payment Code: 90501
Request Reference Prefix: 9999
Note that this would only work when you are on localhost, when you upload to your domain we would have to white list your domain.
use this to test if the Paywith Quickteller sandbox environment is accessible
https://pwq.sandbox.interswitchng.com/?paymentCode=90501&ispopup=true