There are two kinds of fee to be paid by anyone who use a visa on arrival to Vietnam, which are:
Service fee is paid online for our service in order to get the Visa approval letter for you. This fee would vary depending upon your Visa type, number of applicants and processing time.
Stamping fee is paid IN CASH to Immigration Officer at Vietnam International Airport to get visa stamped. The rate is publicly announced in Government website and you will receive a red bill for the payment
Please, click HERE to see detail Visa Fees.