hi! you will have to reach out of itch for the refund as i don’t actually have access to a refund option.
for itch, i would recommend:
- check if you’ve followed the download instructions on the page (you will have to manually move the dlc into the game files to get it working)

i use a MacOS but the file structure should look like that. the DLC also needs to be unzipped to work properly.
-
check if you’ve downloaded the killer chat! version that is compatible with the dlc (1.4 version)
-
if everything is correct, clicking “overkill” on launch will bring you to your saves screen. you will be prompted to load a save.

