I dont think there is a need for coaching for IELTS as far as you can understand the English language, the IELTS exam is not very difficult. When you apply for the exam you get a book and a CD to prepare for the exam, with the help of the book and CD you can prepare well and pass the exam. I have given the exam twice in the past without even preparing for a single day and i got good grades, I think if you take the help of a friend and just use the book and CD and give some time and dedication you will definetly score good and save your money which you would give to some coaching center. They will charge you and tell you the same thing thats in the book.