Troubleshooting

I purchased and used TurboTax to prepare my family 2021 to 2023 tax returns.

Two were reassessed by CRA for the ON CARE credit.

How do I apply for the TurboTax 100% Accurate Calculations Guarantee.

They should be reimbursed by TurboTax the interest and penalties charged by CRA

Please give me details on how to proceed.