yes machan..We'll supply all the tips and tricks to crack 79.hope you heard about e2language.com. 'E2language' paid membership package also provides the similar tricks but there is only 1-0-1 evaluation which is not perfect as face to face.and the price also over 20000 bucks.
Trust me, even from a tiny adjustment/trick it's possible to bring you around 79.
For instance, for Describe Image part in speaking it's compulsory for giving a conclusion no matter how short it is.Cut a detailed sentence that you going to say at the end and instead of that speak a sentence with a conclusion in last 5-8 secs and it doesn't matter how accurate the content is.It will bring you highest marks in DI scoring criteria. Most importantly, do not let your sentence cut middle of it while mic off after 40 sec.complete the sentence before it ends. because if you do so, your score will deduct for all three areas oral fluency, content and pronunciation which is gravely disadvantageous.
Thanks.