Dear Sir or Madam, 
I am writing to express my disappointment with 
this
 current situation in my apartment. I have been a loyal tenant for more than four years and Linking Words
this
 problem never happened before. Linking Words
Besides
 that, I always paid my rent Linking Words
with 
some days in advance and for Change preposition
apply
this
 reason, I believe that I deserve Linking Words
a 
better treatment. 
Remove the article
apply
First
 and foremost, my mates and I are without hot water and heating for almost three weeks and I am strongly concerned about Linking Words
this
 situationLinking Words
,
 since the winter is coming. I tried to contact you the Remove the comma
apply
last
 week, Linking Words
however
, you were Linking Words
traveling
. So I had an opportunity to talk to your wife and she told me that some workers would fix the problem yesterday, notwithstanding, the problem was not fixed yet. I suffer from Change the spelling
travelling
my 
chronic backache and just the warm environment helps me to solve my current health disorder.
Please, let me know how much longer I will have to wait for an efficient solution. Should you have any questions, I can be contacted every day after 5 pm. I suggest that you replace the heating and tackle the situation related to hot water immediately, Correct pronoun usage
apply
otherwise
, I will find somewhere else to live. 
I look forward to your reply
Thank you in advance for your attention
Yours faithfully, 
LarissaLinking Words