prosze o sprawdzenie poprawności listu

poprawcie co jest źle, z góry dzięki :D
dear sir,
I am writing to complain about your restaurant, which I visited on October 28th. I want to express my strong dissatisfaction with the behaviour of yours employess. First of all the service in your restaurant is incompetent becouse when i orderd a chicken burger, i got a special burger, and service was very slow. Ihad to wait halfan hour. Secondly, ibooked table for two person, but i was given for a one person table. in addition the staff were most unhelpful. one of the waitresses split orange juice on my suit. As you imagine, i was extremally upset and angry obout the whole experience, so i expect a refound for my suit and an apology from the service of restaurant.

Dear Sir, (to piszemy duzymy literami)
...dissatisfaction with the behaviour of yours (nie yours tylko 'your')employEES. First of all the service in your restaurant is incompetent (choc service nie moze byc incompetent, ludzie moga byc, service byla 'diabolical due to the incompetency of the staff') becAuse when i orderEd a chicken burger, I (I piszemy duza litera) got a special burger, and THE service was very slow. I had to wait FOR half an hour. Secondly, I booked A table for two personS, but I was given (co? - a table) for a (bez 'a') one. In addition the staff were most unhelpful. One of the waitresses split (nie, chyba nie split ale spILT) orange juice on my suit. As you imagine, I was extremELY upset and angry About the whole experience, so I expect a refUND for my suit and an apology from the MANAGER FOR THE POOR service IN THE restaurant.