You purchased an effect, not a font, and it's important to understand that distinction. These effects work with all fonts and graphics you have; the issue isn't that it doesn't work but rather that you need to understand you bought an effect, not a font. Everything works; you just need to create a new layer and write any text with ANY font. Not the same as mine; I specifically prepared this graphic for the product presentation, only for the presentation. You should use your fonts from your font library
All you need to make: Open File - Double Click on the layer "Edit here" - Create a new layer inside of it - Type your text - Click "File-Save" - Close smart object layer. Done! Effect applied to your font.