I think it's very unlikely that a company that screwed you like this is suddenly going to turn around and decide to give you a 100% raise. Besides, how can you ever trust them to be honest with you in future dealings?

One more thing: since you're making less than $47,476, you're legally entitled to overtime pay under the new rules for any week in which you work more than 40 hours:

https://www.dol.gov/whd/overtime/final2016

These rules take effect on December 1, 2016.

Why are you still there?