They did. Germany was massively in debt to the US- which had been subsidizing the German economy even after the Great Depression started- until Hitler did the Machtergriefung and then promptly repudiated all international debts. (Technically it's more complicated, but that's basically what happened.) Germany owed 19 billion RM in 1932, over 8 billion of them borrowed from the US since 1924.

You really need to read Adam Tooze's first and best book, Wages of Destruction, a very thorough history of the German economy 1920-1945. I'd also recommend The Deluge, which is basically The US side of that 1920s international finance story.