Changed oil but not showing up on dipstick

No insult taken VDCdriver, I did make sure I added the oil via the correct spot. I also waited to 2hrs before checking it this morning and still no change on the dipstick. I ended up taking it to the dealer…still no oil light on. I told the dealer what was going on and asked if they could take me back to work. I waited 5min and they took me back to work in my own truck. Before we left I expressed my concern using my truck and they said it should not be an issue…yeah right! I will update all once I learn of what the issue is. Thanks for all the responses!