I threatened my previous employer into paying my final pay that has been due for around 4 months

I feel bad about it, but I need the money. I have hardened my heart and told them sternly that I need the final pay tomorrow. This subreddit and other users here have encouraged me to do this and I am very thankful. I have worked for them for more than 3 years and never got a raise except for a suspicious bond contract that I paid for so that I can resign.