Dear Sir or Madam,
I am one of your loyal customers and I always take your service for any computer repair works. However, this time I am writing to complain about a poor customer service that I received on 20th September from your shop. I really am disappointed with the service and I hope you will take prompt action after investigating the letter.
A few days ago my computer showed some anomalies and in every few hours, it got restarted automatically. In fact, I didn’t pay much attention to this issue until the problem became more frequent. So, I took my computer to your store on 15th September and your customer care officer promised to fix the problem in a day or two. However, he took a week to call me and when I brought my computer home, I found that nothing has been done. The restarting problem reappeared as usual while I paid $100 to your shop and waited for one week to have it fixed.
This is a frustrating and daunting experience that I have had with your service and I would ask you to investigate the reason for this poor customer support. Please send someone to my home to have the issue fixed or refund the service charge that I have already paid for apparently nothing.
I am looking forward to hearing from you soon.
Yours faithfully,
Milad Rahimi
Dear Sir or Madam,
I am one of your loyal  
customers
 and I always take your  
service
 for any computer repair works.  
However
, this time I am writing to complain about a poor  
customer
  service
 that I received on 20th September from your shop. I  
really
  am disappointed
 with the  
service
 and I hope you will take prompt action after investigating the letter.
A few days ago my computer  
showed
  some
 anomalies and in every few hours, it  
got
 restarted  
automatically
. In fact, I didn’t pay much attention to this issue until the problem became more frequent.  
So
, I took my computer to your store on 15th September and your  
customer
 care officer promised to  
fix
 the problem in a day or two.  
However
, he took a week to call me and when I brought my computer home, I found that nothing has  
been done
. The restarting problem reappeared as usual while I paid $100 to your shop and waited for one week to have it  
fixed
.
This is a frustrating and daunting experience that I have had with your  
service
 and I would ask you to investigate the reason for this poor  
customer
 support.  
Please
  send
 someone to my home to have the issue  
fixed
 or refund the  
service
 charge that I have already paid for  
apparently
 nothing.
I am looking forward to hearing from you  
soon
.
Yours  
faithfully
, 
Milad
  Rahimi
2Linking words, meeting the goal of 7 or more
9Repeated words, meeting the goal of 3 or fewer
2Mistakes