How long should this take. WE mailed in REturn through Fedex 0n 07/06/2022 through Fedex. The tracking said they receive it without signature.

Also you state we need to make letter also. When we mailed return we did not know that.

I mailed the ammended ta return to: Austin International Revenue Submission Processing Center, 3651 S IH35,Austin TX 78741 I sent it through Fedex from Philippi...