I bought a paper texture (Textured Gesso and Watercolor Papers) but it won't let me install

I've been trying to contact the company about the issue where I've been charged the money (checked my bank account) but still am not getting the product.

The product in question is this: 

Textured Gesso and Watercolor Papers

Purchased in app.

What happened was I accidently closed the pop-up that directs me to paypal. It did it and I went to the paypal page and paid, but when I went back to Painter, it still showed up as I have to buy the set to use it. It is also missing from my library.

I'm getting kind of discouraged as I sent a help ticket multiple times and no response. Am I out the money I paid?