Changed Payrate after working hours - Anonymous employee Remedy Intelligent Staffing Employee Review

Quit job after finding coworker took 1 year to get hired on perm and was still on 3 months probation period. How was 1 year not long enough? They didnt have to hire him if they thought he wouldnt work out. Another temp said over 40 hours you get paid minimum wage instead of time in a half or even straight agreed wages. He could have been confused, but I saw the warnings and quit. That's when I was informed without 48 hours notice I would be paid min wage instead of $12 a hour for the hours I already worked. Where was my notice of this when I got hired? I understand why quitting without notice is bad, but it's a temp job and we agreed on a payrate.