Cull-Money?

I just recently playd mid and went for cull. I went back on lane with 2 Stacks left (98 Farm). 2 Creeps later i didnt get my money --> I just didn't receive it. I'm not sure if this bug is just because it got shared and that way it wasnt actually a farm but its listed as one or its a bug in general. Kind regards,

Scûmbag Thresh