Hi Sarnindar,
We received an update from our Engineering team that the issue in claiming discount is now resolved.
You may now try to redeem/claim your discount.
Meanwhile, learners who faced issue redeeming/claiming their discounts may try the steps below:
Sign-out from the browser
Clear cache and Delete cookies. Restart your browser session
Use an "InPrivate/Incognito" browser session or try on a different browser
Allow all third party cookies through the browser settings
If you are using a work computer, you may try personal machine to ensure that there will be no restriction
On the Exam Discount page, enter the email address registered in the event in all lower case letters and “Check for Eligibility”
In the event that you are unable to proceed, please provide us with a complete PSR (Problem Steps Recorder) showing the steps above until it shows messaging and attach it via private message so we can forward this to our Support team for investigation. Also include the confirmation email for completing the event.
You may refer on the image below to access private message:

If this solves your problem, please indicate “Yes” to the question and the thread will automatically be closed and locked. In case we do not receive a response, the thread will be closed and locked after one business day. Please be advised that after the case is locked, we will no longer be able to respond, even through Private Message. If the resolution provided did not resolve the issue, please post a new question.
Regards,