You can send more than $250 but above $1,500 they may question if its lottery scam money and will probably ask 'what is this for and who is it from, how do you know this person?'. The recipient needs a national ID and a TRN card, both with the same name on it as the name you send it in, so you have to be very precise about them having both forms of ID and exactly what the name on them is and how its spelled. Also they need to know the full name that YOU are sending it from, and the transaction number.