Harry's Pov
It was 5 PM when Harry got into Gringotts.
It took 15 minutes to get a private room with one of their senior bankers.
"Hello, mr. Peverell, what can Gringotts do for you today?"
"Well, I was thinking, how do you like to take most of the money of one The most prestigious and richest families in wizarding Britain?"
"As you must know Mr. Peverell, we at Gringotts have our honor above all else, which is why we would never let someone steal from us and we would never steal from someone else."
"I'm not talking about stealing, I'm talking about business with a little bit of cunning."o
"Well let's hear it."
"My previous name was Harry James Potter, I was just disinherited by James Potter. When he used the magical binding oath to disinherit me. He used their standard oath.
Do you know what is the standard oath?"
"If I recall correctly, I believe It's to pay 100 golleons a year and for your magical studies, is it not?"
"Not exactly, you were right about the first part but slightly mistaken about the second one."
"How so?"
"It's not for magical studies it's for all studies."
"I don't see the difference."
"Did you know that in the Muggle world to learn to be a healer costs about 180 galleons a year?"
Harry could see the bloody smile on the goblin's face
"How... intriguing, and you say it's all in a binding oath?"
"yes, indeed. more than that you know I've always been interested in smithing and economy."
"really? I've never heard of a wizard so willing to learn from a goblin that he is preparing to pay 300 galleons a week to learn." The goblin's smile couldn't have been bigger even if he was on a cheering charm.
After that, they fixed the details and agreed that from October, Harry would come every Sunday 12-5 to learn all he can about blacksmithing and every Saturday 12-5 to learn about economic.
"Is that all?"
"No, I believe I didn't god this year's stipend the oaths promises me"