The job offer I got stated my pay was $17.50/hour. Not ideal, but there was promise (from my manager) of a shift differential of $1.50 for a total of $19/hour. Still not ideal, but not the worst. Have to wait an entire month before my first paycheck, which only covered the first week of training. Didn't think much of it because I was expecting it to be small. Get my next paycheck, decide to look into it. I'm only being paid the $17.50.
Talk with my manager, talk with HR, and apparently they decided to include the shift differential in with my base pay for a total of $17.50, not in addition to the $17.50, and decided to never make mention of that fact on the job offer. So apparently my base pay is actually only $16, when their posted range was $15-20 starting for a job I already have 6 years experience in. I knew I was being lowballed, but being out of a job for 4 months, and with a (fulfilled) promise of remote work I decided to take it. Finding out I'm being lowballed ever harder is just insulting.