Nigeria is cash based society. All services, all hotel rooms, and all hospital services must be paid for in advance. The norm in Nigerian culture is to call a family meeting when a problem occurs. They have family meetings for everything. They do not get on the internet, pick a stranger off a dating site, fall in love within a few days and immediately ask for money. Scammers know victims might be aware of this and is one of the reasons why they almost immediately begin calling the victim their husband or wife