Problems entering hanoi airport

Dear person of interest,

Myself and my two friends have a big problem involving our visa of Vietnam. Originally we were planning on staying in Vietnam for one whole month so we booked our plane tickets and bought ourselfs a visa on arrival that is a single entry.

Because of the bad weather in North Vietnam we decided to go to Thailand for the last two weeks of our month vacation.

We booked our planetickets home for the 1st of march and we had 3 planes to catch from hanoi-bangkok-abu dhabi- brussels. We thought we could cancel our flight from
Hanoi to bangkok on the first of march and just catch our second flight in Bangkok. Unfortunaltly that isn't the case. Now we have to get to Vietnam again to catch our plane on the first of march but we had a single entry visa.

So we are now in Thailand but come to Hanoi airport again and ask your help

- we come on the 1st march with an airplane to hanoi airport to catch our original flight from hanoi to bangkok. We won't leave the airport. We just need to get through arrivals and then to departures again. Is this possible? We won't leave the airport, so you can escort us if you want so we won't have to buy a visa again. We are three poor students :) can you give us permittion to just go from arrivals to departures, that little walk will be the only thing we will do in your country.


I hope you can help us,
Thanks in advance,

Hanne Peeters