Not able to see BEGIN exam option for the cloud practitioner exam from today

Hello Amazon team,

today I had my cloud practitioner exam scheduled for 12:15 a.m. I was online at 11:40, as mentioned in the registration e-mail and followed all the steps for the online check-in, but unfortunately I got no begin exam button displayed. I logged in and out several times, I also tried several browsers, followed all the steps, but still no button there.

Log in to your AWS Certification Account On the homepage, click "Manage Pearson VUE Exams", you are taken to the Pearson VUE dashboard Click on your scheduled exam under "Purchased Online Exams" Click "Begin Exam" and follow the on-screen prompts to complete the check-in process

I also could not find an option to reschedule my exam. I already created a ticket but got no feedback. Could you please help me out?

Order Number/Invoice 0063-8883-8685 Registration ID 428861157 Status Expired