Rent increase
A paper about the rent is on the table, or the number you pay just went up. You read it twice and still are not sure what it means for you. That pause, before you answer, is enough to start.
Say what the paper says, in your own words. The old number, the new number, the date, if you have them. Add the address. This page does not say the increase is unlawful.
A draft can consider a letter to the owner and, if the type fits, a fourth letter. Only from official files. This page names the problem. It does not decide that a rule was broken. You decide what to do next.