You should use today's date and you can attach a note saying that the return was filed in April, 2021. If you already have a dated copy, do not change the date but add the current date below it.
Per IRS: We credited payments and/or other credits to your tax account for the tax period shown on your notice. However, we haven't received your tax return.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
