A potential employer's staff told me they could change a T-Visa for about $ 50 in Vietnam.
Heard of changes and that it's a new law to apply in one's home country... No more B-3 Visa on arrival (I checked).
Am worried as I'd hate the cost of unpaid leave and returning to Europe... And working on a Tourist Visa is illegal anywhere in the world! (Or could one do the change before starting to work?)