Package not received, 16 days left until automatic confirmation

In December of 2025, I ordered an item (that had a delivery option but no tracking). I have used specific coupons on my order and yes, I have contacted the seller, although they sent me my order info back at me.

I have thought of waiting until confirmation and now, contacting the seller to extend the delivery date. Do I contact the seller again about it or tell them to extend?