I doubt that it's a warranty issue, as crash damage and things like stripped threads fall into the users responsibilities. However they may have a low cost repair or replacement option to offer you. So start there.
The stripping issue is easy to fix. Likewise, if it's only slightly bent, it can be straightened, but this is a matter of degree and also depends on how much and how often it's been done before.
The crack is more complex, but depending on location and extent might be repairable.
In most major cities is a shop whose mechanic is known for his ability to do impossible repairs. Ask around locally and see the right guy for advice on your options.
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