I don't understand from where you interpreted that there are 3 codes, as far as I know finding one code is enough.. But this treasure hunt has long ended now and the winners have been announced in their Telegram Channel.
Here, here.
Once you have found three codes
I do not know that only 1 code is needed. LOL, I keep searching for another 1 because I only got 2. I keep searching and learned about data encryption and decryption on images.
No regrets, at least I had something new in me because of my misinterpretation.