Vietnam visa question in south africa

Do I need to Apply for New Vietnam Visa Approval letter?

I got my visa approval letter to enter Vietnam on August 10. However, my plan has been changed and I will not enter Vietnam until August 15. Do I need to apply for new visa approval letter? Please advise.

Dear Bille,

Please be informed that in this case you do not need to apply for new Vietnam visa approval letter as you can enter Vietnam in any day between your granted arrival date and exit date. But please remember you have to leave Vietnam by your granted arrival date.

Should you need any further information about Vietnam visa, please feel free to let us know.

Kind regards,