OnTrac complaint: Package never received although OnTrac states they delivered it.

I had placed an order with Walmart on 11/30/2023 order 2000115-93774327, tracking 1LSCXLN002TCDTG. Sent messages to Ontrac on 12/10/2023 and 12/13/2023 I waited the fhe 48 hrs. to see if the package would be delivered still no package, Sent the other message to Ontrac on 12/13/2023 and was told they were going to investigate. To this day no response tried calling the I was given for Ontrac and it’s always busy and you can never get through. The order was a birthday gift then the package was delayed in Fontana then finally shipped and supposedly delivered on 12/8/2023 which it was NOT DELIVERED I was HOME ALL DAY!!!! I checked w/my neighbors no package was delivered to them by mistake. All i want is a replacement. I have talked to Walmart.com on several occassions and they stated they would refund but NOT REPLACE!!! I want a replacement because W.M. stated I could reorder but would not get it for the sale price I got when I first ordered.