I ask this question just out of curiosity. Please advise if it's a better fit for workplace or some other site.
I was hired to work at a store. I quit after having worked 2 hours. Part of the reason I quit so fast was because there was no paper work aside from the welcome email from HR. I finally received pay but given various union deductions the payment was very small (~$10). I had no idea there was a union or that this was a union job. Is this legal? Is there an upper limit to how much union fees can be taken off? Is it possible to be in a union and not know it (not withstanding union bylaws e.g. in another job management was required to periodically announce how members can contact the union and no retaliation will come for doing so)?