If your NETFILE/REFILE account has been locked, you will need to contact the CRA. NETFILE/REFILE is a service provided by the Canada Revenue Agency (CRA), not by TurboTax. TurboTax has no control over the CRA's servers, so we can't unlock it for you.
If you are in Canada or the United States, you can call the CRA at 1-800-959-8281. If you are elsewhere, you can call 613-940-8495. This page has more ways to contact the CRA: Contact the Canada Revenue Agency
