Misunderstanding&Bad instruction

So, I've sent my bank card to a good friend of mine in Yokohama, hoping that she would check the balance for me. She was busy helping her parents travel around Nagoya, and, after when she came back from Nagoya, she got to check the bank for me, but unfortunately she did not recognize which bank my card belonged to. The card was written with Fuji Bank, but she could not see any Fuji Bank eventhough she tried so hard to find one. When she was in Nagoya, she could not find one also and that made her think that the bank was only located in Tokyo. I was wondering about that when I was so told; however, I remained silent to wait and see. And even after she came back, yet she had the same answer, I started to wonder. She said maybe there was no Fuji Bank any longer, then I'd realized she didn't know that Fuji Bank has now become Mizuho. I busted into laughing restlessly. lolz. It was too funy for me 'coz I thought she knew it had changed long time ago. She herself dumped her head also. How ignorant! Anyway, that was the first mistake. The second one happened when I prolonged my instruction about what to do with my card and the money. She sent it back with her father. Ah...I wanted her to keep it there so when the money was transmitted she could confirm it for me. Anyways, when I told her about it, she blamed on me a lot. She said I was careless, and should have told her before that. I said I thought by telling her nothing what to do with the card, she would ignore it and leave it there. Anyways, I accepted it and promised not to do the same mistakes. Instruction should be more prompt and accurate.