I guess due to luck with circumstances, this is often an issue for me. I wonder how normal it is. I was joking about this today with someone and comparing it to the scene from The Simpsons where Mr. Burns wakes up from being shot and randomly starts yelling Homer’s name when asked who shot him. Thirty minutes later someone tried to confront me because I seemed like the most likely candidate for who stole their mail.
How do you test rent?
I don’t know about other countries, but in the Netherlands you go to the rental commission for a “rent check”: https://www.huurcommissie.nl/support/huurprijscheck
Are utilities included in your rent? If so maybe the landlady is seeing increased utility usage/costs, and the rental commission decided yep, they’re running a business in there.