CPA hasn't filed 2019 taxes. Anything I can do?

[Chelsea Ross]

In 2019 I decided to start using a CPA that specialized in REI to help me with tax planning. The CPA was actually recommended on the BP forums. I paid in late 2019, and handed over my documents in March 2020. Despite many emails and phone calls my 2019 return still has not been filed. I keep getting promises of "by Friday" and then nothing. She claims she filed an extension, but I'm really concerned. Is this normal? Is there any recourse I can take?