This got a lot of old purebloods angry. They all went to the Ministry to demand Hermione to something about it. Eventually, Hermione passed a motion declaring that the Ministry themselves would reimburse them. But, there was a condition: if the money you tried to get reimbursed was received through illegal means, you would be sent to Azkaban for a year. Someone though the Ministry had no way to know how they got their money, and tried reclaiming it. He was soon sent to Azkaban when Rubystones happily presented evidence. Turns out the goblins kept very detailed records, including where every galleon in a vault came from.