I downloaded the new updated you just posted but all that happened was 

-The creed reference thing

- It skips weirdly to a camera scene of a girl on her phone, i somehow get past the screen with some difficulty

- "Thats all the new content" Screen appears

am i missing something or download the wrong file?

Do we have to repurchase the game after every update?

Hello!
Here’s what has been added  : The continuation and conclusion of the scene in the toilets (26 animations) and in the bathroom (16 animations).
And no, you don't have to repurchase the game. The only difference compared to Patreon is that updates are not immediately available on Itch.