If you read the comments below my lessons, you may have seen some very helpful replies by an IELTS teacher called 'sjm'. Although we don't work together (I'm based in the UK and sjm is in Australia), sjm and I share the same ideas about how to tackle the IELTS test, so it's great to have his help!
Sjm has a language school in Sydney, Australia, called Doctor IELTS. The school also has a Wechat page for Chinese students, so if you live in Sydney or speak Mandarin, give them a try. And look out for any comments by sjm here on my blog - you can definitely trust his advice!