I would like to purchase a product that can help me correct an already corrected W3 and pertaining W2s. Example: I incorrectly filed W3c and W2c forms for tax year 2014. Currently, the BSO only allows for me to go as far back as 2015. I called the BSO services line and they cannot help fix it because the issues with my incorrectly filed W2c and W3c are with the withholding sections.