What are the experiences and recommendations for applying for a DTV Visa in Vietnam?

Hello and firstly thank you to all those in this group who make the application process so much smoother. My son had his DTV Visa approved. He applied in Hanoi, submitted Sunday evening when he arrived, change to pending document check on Monday, change to pending approval on Wednesday, nothing at all until Saturday. He was due to fly out on Sunday so he sent them a polite email asking for an update. No update came so he left back to Thailand, two hours after he arrived home he received approval. Now he’ll have to go out and come back again to activate the Visa but this is to remind everybody that this office works both Saturdays and Sundays! Although official hours are not on the website, his approval email came at 7:34 pm on a Sunday.

And yes, we know officially he should stay in the country until it is approved, but he had to come back for personal reasons .