I'm really sorry, but you could have told me all of that before, so I would be able to help you!
To access the rooftop where you find the Jacuzzi, you just needed to turn the key you had to the right side. You could let me know you were have trouble so I could help you some how.
The cleaning staff must have forgot to leave the toilet paper. It is not supposed to, so I could ask them to come back to bring you paper.
As I explained to you before, the apartment is in a parking red zone, and I agree it is very expensive (25,6€ per day during the week, 6,4€ Saturdays and Sundays are free) but you will always find a spot to unload or upload the car, what is very useful. There is a yellow zone in the park Eduardo VII one minute walking distance from the apartment and it is not expensive (12€ per day during the week - Saturdays and Sundays are free). An alternative is the private parking Saba Alto do Parque 2 minutes walking distance from the apartment.