About the description for the a/c there were a mistake and it has already cleared.
In the basement of the house which there are stairs with locked door, totally separate, some days the lady who cares the house is living there with her son. She has different outdoor for the basement and she has no connection with the guests.
About the beds, I can't understand what you are meaning with the word "old". If you have any problem, you should have said during your staying. If you just don't like the mattress, I really can't say.
About the bathroom curtain, yes it was short because the previous guests destroyed it and we have to replace it very fast for your arrival. So, it wasn't the right one for the bathroom, but there were a curtain instead of nothing.