Pls I travelled out of the country with Air Nigeria and now I heard the airline is no more existing. Pls how do I come back home b4 my visa expires pls......

Did you buy a return ticket?

Did you buy @ the airport, online , travel agent?

Anyhow, functioning airlines offer refund for cancelled flights but mind you, you won't get full refund. Infact you'll be very lucky to get 70% of what you paid as tax is deducted, you'll only get the base fare refunded.
Start planning on buying a new return ticket. Air Nigeria is not "functioning" right now, who's gonna refund you? Call their office sha, they might have made arrangements with another airline for people like you, who knows?

I think you need to find money and buy ticket from another airline. When you return, you start the battle for refund of your money. But I am not aware Air Nigeria has refunded anybody. I bought their ticket also online. Got stranded in London, had to buy ticket from another airline to return. Now I have been to their head office at Broad Street and the private security there told me that the Air Nigeria Office is locked. I have been to MMA Lagos, there is no one to attend to me. Their phones are not being picked. We may have to involve Consumer Protection Council because it is unheard of that somone fails to deliver service after payment and is refusing to refund.

God help Nigeria