Oh likewise! Personally I'm a rather clean person when it comes to making my own mess, but when it comes to cleaning some other people's trash I just don't do it, and if I have to live in it I just don't allow it xD. Well, I sure did clean my ex's room when I moved to his place for a week, but that was the only exception, I had to stay there too after all
Mind you, do you pay utilities/ council tax or anything like that? If you're paying council tax I would totally visit the local council and ask them for suggestions.
Also, I get what you mean, but you should be receiving the conditions you paid for. I personally hate estate agents because, after all the calls I had to do myself, I realised they're just vile people.
My dad called an agency to arrange a viewing for place for me, I was cooking in the kitchen, and the agent told him the house was already taken (the advert was put on their website that morning, and it was merely noon). The moment she heard his strong east european accent she just said I'm sorry this house is taken, and when dad asked whether she had any other adverts she just said no and ended the call. I called her after 20 minutes when I found out, from my own phone, and not only did she say, "yes of course, a viewing then would be perfectly manageable" she kept me on the phone 15 minutes telling me other offers they had available.
I never had that massive urge to curse the Mordor out of somebody in my entire life.
Best of luck though, have a grand time at uni! I'm a fresher, so I'm excited and also scared about uni