Hi,
I have ordered 4 items and never heard back from them, all I got was the auto reply. I needed the items to be authenticate asap so I can return it back in time, as the deadline is getting closer. It's been couple of weeks now.... extreme disappointed... I do understand the system problem... but yet I am extremely disappointed.
Have you followed up and re-contacted them? Have you checked your spam folder to see if responses might have gone there?
Definitely try contacting them again if you haven't. I usually send them a screen shot of my Paypal receipt when I request a service, just attach it to the email. This way they know to connect your payment with the correct customer. I haven't had more than a 2 or 3 business day wait for authentication, but I have never requested the pricier services such as the authentication needed for Paypal. GL!