Make him replace the hitch prior to buying it. After purchase they will blame you.
First time I’ve seen a twisted one. Couldn’t use a hitch platform too well.
Generation thirteen Ford F-150 standard duty hitch receivers also have poor quality control. Many angle downward at the back, easily seen from the side and especially with a ball mount installed. Makes it look like someone overloaded the tongue weight and bent the receiver down. NOPE, factory delivered that way!
Mine does it but it hasn’t bothered me enough to fight for a level replacement. Very well documented on the F-150 forums.
You should download an angle measuring app and measure the hitch twist. Then if/when they replace it, check the new hitch’s level. Compare the other truck hitches on the lot. With the Fords, you can stand back and look down a row of trucks and clearly see the downward dog hitches. The twist will have to be seperately looked at.