Lost Federal Refund Check

Hi! I have been reading posts in this forum and I am terrified I will experience a similar situation.

 

I have not received my federal refund and after speaking to Turbo tax was informed there was a discrepancy with my checking account number therefore a paper check was sent out.

 

The paper check mailed on 2/28/2023 due to the error on my bank account. However the issue is that the paper check was sent to my old mailing address off my W-2.

 

I have called TPG bank several times to update my address and get a resolution on this and held for several hours, only to not receive any response back. 

 

I am a single mom and am in desperate need of my tax return. 

 

Does anyone have any suggestions of how to best escalate this and get this resolved?