EVISA Entry date correction after submittal

Dear William Beard,

Thank you for reaching us.
If you applied with us, and contact us right away, we would have fixed it for you.
But you did not apply with us, the Visa application once applied cannot be amended. 
In case you enter Vietnam after that entry date and within the validity, you can use it to enter Vietnam without any issues.

But if you want to enter Vietnam before that entry date, you have to apply for a new Visa.
You can apply for a new Visa with us at this link https://www.vietnam-evisa.org/apply-visa.html

Best regards,
Heidi Phan (Ms.)