How to reproduce:
1. Install the App: https://www.microsoft.com/store/apps/9NBLGGH4W9M8
2. Redeem one of the codes on Windows Store (found in the edit)
3. Open the App -> Try to purchase either 10 or 50 coin pack (according to which code was used in Windows Store)

Expected result: Redeemable Promotional code for consumable worked and gives coins
Actual result: Redeemable Promotional code for consumable did not work and an error appears "Looks like you already own this" and does not give any coins

Reproducible with: 2018.4.26f1 (1.20)

Not reproducible with: 2019.4.7f1, 2020.1.1f1, 2020.2.0a20

Notes:
- Could not test the issue with IL2CPP, because issue appears when App is released on Windows Store