2021 4th Qtr Est Tax Sent to wrong address. How Can I fix this?

So you are saying the check was never cashed ?   Or did the state cash it ? 

Check was processed by IRS, but no credited given on my 2021 est4th Qtr payment.

Any suggestions on who/what/ I can do or contact to fix this.  My fault .

Tnx

So the payment was credited to your 2020 balance due and not the 2021 estimated payment ?  Well there is nothing you can do about that on the 2021 return ... you simply will not have an Q4 estimated to report.  And you will have to wait and see what the IRS does about the excess 2020 payment ... you can check your account on the IRS web site to see what they are doing with that situation. 

How does one contact the IRS online to view your account?

Thanks for your help.

https://www.irs.gov/individuals/get-transcript

Thanks. I've been trying to create an account, but so far I've only managed to get locked out after too many tries.  I'll keep trying.