Hi Apichai,
Thank you for confirming that you have attended the Virtual Training Day events this April.
Please note that we have recently confirmed from the MVTD event organizers that they will no longer offer free exam vouchers on their events beginning this month. The events will continue their sessions for training purposes only but with no associated discounts.
You may want to consider joining other events such as the Microsoft Cloud Skills Challenge | 30 Days to Learn It where you can take advantage of 50% discount on selected exams after completing the challenge. For more upcoming events, please visit the Microsoft Events Catalog page.
As for you your company vouchers, please reach out to the ESI Support group for assistance. You may create a support ticket by accessing the link below and sign in using your company email address:
http://esisupport.microsoft.com/en-US
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. If the resolution provided did not resolve the issue, please post a new question.
Best regards,