Getting "Usage Limit You have exhausted the lab time provided with your course enrollment."

I enrolled for enrolled for “Deploying a Model for Inference” NVIDIA course.But I am getting this below message and I am unable to complete my labs anyone please help me on it.

Message:

Usage Limit

You have exhausted the lab time provided with your course enrollment.

If you believe this message is in error, please [contact support]

there is a option to contact support team link.That link is not working.

Hello,

Welcome to the forums! I have granted you an additional two hours. Let me know if you have any issues.

Cheers,
Tom

its not realistic to complete those labs in 2 hours.Could you please extend upto 6 hours please.

All set, you have 6 more hours to complete the course.