THIS IS JUST A HYPOTHETICAL QUESTION!!!!!

Lets say, Mr. Harry Bahadur from USA told his friend Mr Ram Bahadur in Nepal that to give his family 75,000 (1000$). Mr Ram did as he was told. 3 months later Mr. Ram wins a DV visa and comes to the USA. Mr Harry gives him 1000$ to Mr. Ram as he promised him. Now Mr Ram refuses to take 1000$ and wants 1153$ because he argues that right now conversion rate is 1$=65 Rs.