Average response time on Zendesk?

Does anyone have any idea on the average response time for support tickets in Zendesk? (https://curseweb.zendesk.com/)
At Cyber Monday, (December 2nd) I've created a ticket there, but so far no response yet..

Usually around 2 business days. Your ticket may have been overlooked.

Hello! What is your ticket number?

Hi Mellie:

The ticket is #897034. It has been assigned to AmbyR for a while

Thank you! That support representative has let me know that your ticket is high in their queue! You should see a response today. 

Please feel free to send me a message if I can be of further help!

Thank you, a response has been received :)