Contact the issuer of the form to get the correct copy if you get an error when filing. If you change the WTH to lower case and add it to the end, it should go through. The number should be formatted like - - 12345678901wth (lower case) - - It should be 11 digits with wth at the end. You said you did not receive a 1099 - but what form are you entering this from? a w-2?
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