Who would I talk to about schedule/ paycheck mishap?

I had a mishap with the schedule, hours aren’t right, paycheck now a lot less because of it. Already messaged manager about it and he never texts back. Unfortunately, the pharmacy managers don’t know what to do, so who should I try and get in contact with so I can hopefully get paid for missing hours next paycheck as I know tomorrow is pay day so this won’t be fixed by tomorrow.