Hi @Cert-Team, the support team have reached out to me saying that the voucher code can be used but the error is still the same to me and I could not login into the support portal to reply to the ticket. As mentioned in the email, if the code is still not usable, they will help me to schedule my exam and my preferred date and time is as below. Can you please assist me on this?

Preferred Date & Time: 30/03/2024, 2pm MYT
Ticket ID: ref:_00D61JGc4._500Vp4XdWs:ref 
Request Number: 00455013

Thank you so much!