IELTS letter 150 words

Task: You rent a four-bedroom house, which you share with two other students. However, there are several problems with this house that need fixing. You also find it expensive and would like to find another student to share the spare bedroom.
Write a letter to the estate agency. In the letter explain your situation, describe the problems with the house, say what you would like to happen.

Dear Sir or Madam

I am renting a four-bedroom house and share it with two other students. Currently we are experiencing some problems with the house, which we want to fix with your help (or "which we need your help with fixing"). The flow of hot water in the bathroom are is very low (or "there isn't a good flow of hot water in the bathroom"). We decided to order call a plumber, but the question is, who will foot a the bill? We Us or house owner (better would be "the owner of the house" or "the landlord")? Also the window in my room (next to the main staircase) does not fit the frame neatly properly, so there is little bit noisy and and windy  it is very noisy when it is windy. And The most obvious issue which we raised the same day we observed viewed the house is the refrigerator. It has not been replaced yet, even though this is in the contract (or "this was a clause in the contract") clauses.

And Last but not least, we have realised that the price for a the rent is quite high and we would like to call on your company (or "we would like your assistance in finding a fourth person") to find an additional fourth person who are is willing to rent the last unoccupied bedroom (+ you could add "which could help to spread the cost"). 

(Please, respond my complains as soon as possible, especially the complain regarding to refregirator.)

Please can my complaints be acted upon/rectified as soon as possible, with the refrigerator as top priority.

Looking forward on your help (You could say "Thank you in advance for your assistance, looking forward to hearing from you")
Vladimir