I might say add that what you are offering is pretty plain and expensive for Polish standards, although cheap when it comes to person living out of Poland.
Hate or love me I would be a excellent client, are you able to direct me to someone who is able to help me in this regard.
I've just taken a look at BubbaWoo's website and to be honest I don't think his prices are unreasonable. For an apartment in a central location in high season I don't think you can get an equivalent apartment for much less.
Perhaps you are looking at monthly rental figures for long term lets and expecting to pay those kind of rates but only for 3-4 weeks. Afraid you might have to pay "tourist rates". :(