I am not with Laminar Research; just a flight simmer.
I am of the opinion that your problem is with the Apple Store where you tried to purchase/download the App. It is a 3rd party product.
This forum is for questions and answers related to the use and operation of the X-Plane software and is not even an area to ask questions related to Laminar Research.
Laminar Research can be contacted at firstname.lastname@example.org I am pretty sure the person who responds to your question will also advise you to contact the Apple store as it is a 3rd party product
Good luck in solving your problem.