The arrangement suited Hermione and her son at least. Thanks to her antics on the horcrux hunt twenty years earlier, she was given a lifetime ban. Despite her allegiance to the Dark Lord and her high position within the regime, the goblins would not be budged in their decision. Anyone who was known to be a thief wasn't allowed. The fact that she also aided in the theft of their dragon was an additional strike against her. Oliver was relieved that he didn't have to go inside with his father. Since he was a small boy he'd found the creatures that ran the wizarding bank unnerving.