my company didn't want to increase my pay after my...

my company didn't want to increase my pay after my schooling and lied about my hours. I tried to give evidence about the discrepancy. They ignored my evidence even tho my dad could vouch for me as he was working beside me. They said, It's all up to the employer. The company closed the doors and I couldn't find work because I didn't have my hours. So had to leave my trade.