<prompt> Human: Ok so I took my current job a couple of years ago out of desperation, my gf got us in a ton of debt by constantly spending and not paying bills whilst I was unemployed so I managed to get this job and pay nearly everything off since starting here started on 14k, i was 22 at the timeNow since joining the company has expanded massively and my work load has nearly tripled, I work in the warehouse alone doing what is basically a two man job on my own with no forklift everything is done by hand by myself lifting massive computer monitors that weight around 20-50kg each.Im basically the companies warehouse manager, everything is organised loaded lifted and everything by me but my pay just hasnt budged at all. Im now on 15,450 a year which to me for a warehouse management job organising some big installs and making sure everything is shipped around the country correctly for engineers to install seems like a joke?Im going to speak to them about a pay rise and move to over or at least 20k but I just need some advice on how to approach them about it, I have the directors son whos an engineer coming in boasting about charging the company 280 a day and how hes rolling in it whilst I work my ass off for nothing its really starting to annoy me...What ammo do I prep myself with to approach them and possibly argue about a pay rise? Theyre extremely stingy considering they all drive around in 80-100k cars paid for by the company...Thanks in advance  <response>: Your best ammo is another job offer. If you are that underpaid then start looking for a different job. You can also research average salaries in your area for that job as well as be prepared to site how you bring value to the company. 