Mr Achimugu , What can we do to help ?
We the Nigerians in the Middle East community are more than willing to support with the process of ensuring our sister is safe in the blessed country of Qatar .
I have confirmed, via the airline, that CCTV shows your sister arrived safely, pick her bags, and exit the terminal.
Because yesterday and today are more like public holidays for the guys over there, investigations are a little slow, but later today or tomorrow, we will be able to confirm if she arrived at the hotel she booked, and if she got there via the hotel pick up vehicle. Every Qatar visa booking must be tied to a specific hotel reservation. In some cases, passengers arrive at the hotel booked, and then leave quietly. DISCOVER QATAR will check to confirm the name of her hotel, and whether your sister did, indeed, get to the hotel.
I have informed the airline of fears about human trafficking, forced labour, etc. They have assured that once the hotel confirms her check-in or otherwise, the issue becomes easier to treat. If she did not arrive at the hotel, a manhunt would ensue. It is easy to track people once they have arrived in Doha.
If you have not heard from her, please, remain calm until tomorrow.
PS:
This isn't my purview. Just going out of the way, please.