<prompt> Human: Sorry if this is not the right place to post this. My Japanese friends are moving back to Japan in a few weeks. I have been their daughters private music teacher for a number of years. They are getting rid of some things they cant take with them and asked if I wanted a Yamaha electric piano. I said yes and offered to pay them for it, they refused. They gave me the electric piano but asked if I could take another delivery today. I was slightly confused but said yes. Well, they delivered Yamaha upright studio piano valued 3600. Im amazingly flattered by their generosity but Im not sure I will keep the piano because now I have 4 pianos...and Im not a pianist. Anyway, I want to give them money for the pianos but I dont want to offend them, I dont know the rules of Japanese ettiquette. Should I keep pressing them to accept money for the pianos? Also, since they are leaving in a couple of weeks, If they will accept payment for the pianos I am considering giving them money in an american express travelers check, I know European banks will take them, but will Japanese banks?  <response>: Its a gift for your generosity and service. I think your thanks and appreciation are all they expect in return : 