I paid off my installment agreement 10 days ago. When I log in to check my balance it is still showing the full amount unpaid. IRS Pay did take the money. Where is it?

I used IRS Direct Pay on December 6th and paid my full outstanding balance on my Installment Agreement. It's now December 16th and when I login to check my balance it's still showing the full balance unpaid. I checked my bank account and the money was deducted by the IRS. The question now is when will it be applied?

My auto payment was on the 14th. Now I've overpaid because since the payment didn't post the IRS took the normal payment. Do I get that money back?