Sorry to say it, but I have to leave the city before your visit.
So, my apartment's keys were given to neighbors that live in flat 11.
They usually at work until 19 p.m. everyday not including the week end.
You should to get the keys from them.
By the way, the most important thing in my flat is heating.
You have to watch for licking water from heating batteries,
while the outside temperature is dropping.
The water can damage the floor and the neighbors’ apartment,
therefore you should check them regularly.
For your entertainment you can go to the center of the city.
There are a lot of shops, cinemas and scenic places.
Also, I think you should eat out at the restaurant near my house.