Could you please answer the questions below. I do not understand the problem. What you said is inconsistent. You first complained about getting references to the deluxe version, so of course I suspected you thought you paid for the deluxe version or you thought you downloaded the deluxe version. You neither confirmed, nor denied that. You just assert that it was promised that whatever content you miss, was promised to be in the version you downloaded. After glancing at the game description, I do not know what is even promised to be in the free version.
How much did you pay? The bundle that costs 20 $?
What files can you download on the game page? The 7.99 $ file? The 19.99 $ file?
What file did you actually download? The free version? The "full" version? The "deluxe" version?
Is the game fully released or in development?
If it is in development, how do you know the part you are complaining about is just not yet implemented?
Did you try to complain to the developer first about missing game features?