Dear Mr. Smith, 

I am writing to say tell you about prime trouble the main problem which occurred two weeks ago. As consequence of it, we have not had any hot water (we do not have hot water).

First of all (Firstly), I would like to say you tell you that I am a loyal tenant. I have rented been renting a flat for two years and I always pay in time (I have always paid in time). That (This) is why the current situation is forcing my mind to go mad driving me insane.

I would like to explain. As I've said above, I have not had hot water in my apartment for three weeks now, and your manager said told me he could not repair the boiler because it is too old. I consider it is not a solution of problem, isn't it? (That is not a solution, isn't it?) It should be noted that all trouble which we had before your staff had solved immediately and qualitatively. That is why I am shocked by that the situation. I suppose You need to do something and solve that trouble the problem.

Moreover, I would like to get a 35 percent discount for all days without hot water. also I should also say that if you ignore my letter, I will cancel our contract. I hope you empathize with my situation and you can overcome that problem quite soon solve the problem immediately.

 
Yours faithfully,
Maxim.

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Please note:
I wasn't able to comprehend the text in red.

Text in bold are my corrections, they may not be an absolute answer and may still be paraphrased. Text in italic, your own phrases, may be considered correct, but I've provided alternatives enclosed in parentheses "()."
-C

A letter to the accommodation officer

Please, help me to correct my mistakes.



Dear Mr. Smith,
I am writing to say you about prime trouble which occurred two weeks ago, as a consequence we do not have any hot water. 
First of all, I would like to tell you that I am a  loyal tenant, I have rented this flat for two years and I always pay on time. That is why current situation is forcing my mind to get mad. I would like to explain. As I said above, I have not had hot water in my apartment for three weeks already,  and your manager said he could not repair the boiler, because it is too old. I consider it is not a solution to this problem, isn't it?
It should be noted that all troubles which we had before, your staff had solved immediately and qualitatively. That is why I am shocked by that situation.
I suppose you need to do something and solve that trouble, moreover I would like to get 35 percent discount for all days without hot water, also I should say that if you ignore my letter, I will cancel our contract.
I hope you empathize with my situation and you can overcome that problem quite soon.
Yours faithfully,
Maxim.