Dang okay, thank you for your response, do you mean it doesn't work with the old version due to the game forcing you to update or because the devs somehow patched it (via a server-sided hotfix presumably, ignoring all purchase web-requests from the older version)?
Because if it's due to the first reason, that can still be bypassed by MiTMing the game's outgoing and incoming network requests manually (which I am willing to do myself).
Another reason I'm so onto this topic is because if we record the outgoing HTTP requests the game for example makes when purchasing a 10K gold pack, we could just write a script that repeats it over and over, essentially granting you infinite currency; I'm just really interested as to what the request body would be like, as the values are encrypted, but we could try copy pasting it and replicating the request in a newer server request format and checking if that would work.
Let me know what you think, and my sincerest of apologies if I've been hassling you 😅