Asking this mainly for my wife, not myself. I'm also affected by it since we live together.
Please note that I'm NOT asking for legal advice. Legally I would know how to proceed, unfortunately, it's a very slow process and my wife doesn't want to change job.
It's a small company with only her and her boss working there. A few months ago she started to receive her payments late, usually, you get paid at the end of the month. She didn't make a big fuss about it since its normal that sometimes you receive your money a few days late. But now she only gets her paycheck when the next month has already started.
This puts us (her and me) in a bad situation since our main expense is rent - which we have to pay in advance every month. Obviously, there are other bills too, but I don't see them as crucial as rent. In the worst case, you have to pay a late fee and get banned from the store, but not paying your flat on time scares me - it's obviously a long way until you get thrown out. But it gives you a bad record and it won't be easy to find a new flat.
When my wife tried to tell him that it's not about her being greedy but her deadlines and bills that she has to pay on time he dismissed her as "it's not that important" and "a few days don't matter".
Not sure why she doesn't get paid on time - they have money to renovate the building, hiring social media experts and buying (and then closing) other stores. At the same time, I'm completely aware that having a business is though, especially in retail. Sometimes the boss mentions that they don't earn enough.
How can my wife explain the need to get paid in time without getting dismissed and without ruining the work-relationship?
Note: I excluded the country-tag on purpose as it feels like otherwise, it would steer into the direction of legal advice. If you feel like your answer is bound to a certain country feel free to mention it.