Terrible Service!

Our family had 3 properties with Huurkor. Two I have taken away now as the agents involved are unprofessional. The one property was sub contracted and damaged. The other I went to fetch the keys after I was told the keys would be available at the office. The one set is missing and the other was given out to someone else. The last property that is still at huurkor had an amount debited from our rent for an invoice that was for another property in the same Street. Took more then 6months of me constantly following them up before the amount was refunded. Doesn't matter how many times I've complained to the agent. Today Louisa just stated \I don't know what's going on, I just work here\""