It is true, not quite longer some of my colegue's brother came to visit him and we meet in  a joint where we relax after work, and after some bottle i requested for more for my guess, soon gist commenced, that the expired money can be exchange, but the diference is a hundred naira now goes for fifty kobo, iam very happy over the latest news after our merry, i went to my quater, then call the owner of the money and passon the news across to him, we concluded that they have to carry the money and exchage, the sum of N13,000.00 for N7,000.00, i wrote an agreement to stand, as a witness, What will happened? this two gentle men did not comeback untill i inform their brother, about the matter, Their brother might have contacted them, one week later they are here, one funny thing they din't came to me instead they went to the owner Alhaji Isa, they only came to me that they didnot came with the money but told the owner that inother to no fear in the next two weeks they are coming with the money. But i disagreed unless we get to the owner and we both sat down and agree together