Pro_Viewer, hopefully for you and others who may not understand the end of this film. I do. I am not just Nigerian but I was born and grew up in Benin City.
Basically, Joy returns home, of course she does not find a viable job so we see her at a party. Now she is holding some money along with other people. These sort of people in parties, usually change high denomination of naira notes for lower ones. The party goer then gets to spray this lower denomination notes to the celebrants. It is a Nigerian thing to spray guests/hosts at their parties. Typically someone like Joy will get some money for this sort of service. Nevertheless, it should be noted that such gain is little or nothing.
Joy knows this and realizes her existence back at home will be fraught with continued hardship, not forgetting her daughter is still in Austria.
She approaches a man spraying money at the party (obviously someone connected and rich) and pleads with him to remember her. The man promises to sponsor her next trip to Europe but reminds her it will be done in 2 days time but she needs to swear to an oath again.
Hence the same cycle of prostitution is about to repeat itself again in Joy's life.
Sad tale.