Xiaobaitu, are you here now?

I try 1-800-375-5283 so many time, my experience is when i input my case number the messenger tell me that due to a temperary problem, he can not access my information. in this case what i need to do next?

if i hold on, he will tell me go back to the main manual, after several time he will terminate the phone call. How to avoid this matter?

Or what is the correct way to get to talk with a reperasentative? thank you for your time.