I get my visa by post or other way

Dear sir/madam, 

Thanks for your question, 

You can apply visa on arrival at this link : https://www.vietnam-evisa.org/apply-visa.html

Once you applied successful, we will confirm all information about visa for you visa email, and then, will send you approval letter from Immigration Department, 

You can use this letter to board the plane and get visa at the airport

Thanks and best regards, 

Camellia