190 visa and ielts???

Hi all, I just got a few issues regarding the 190 visa. I thought originally I had 60 points which is enough. I am 30, I have completed my skills assesment ( electrician general ) . I did the ielts where I received, listening 8.5 reading 8.5 speaking 8.5 and writing 7. I spent a year and four months in oz in 2008 2009 so a years work experience in my trade in oz or so i thought. And applying for 190 is automatic 5 points. Age: 30 Skills assess: 10 Ielts:10 Work exp:5 190: 5 But now my agent in Australia has told me I do not have sufficient evidence to prove I worked for 12 months as an electrician in oz. I only have enough to show 9. Unfortunately I regrettably worked a few years illegally too so that can't b used and I only have two years experience qualified outside of Australia. So now it looks like I have to drop five points which leaves only 55. I am just wondering has anybody been in a position similar. Is there any way gaining more points or am I going to have to get all band 8's in the ielts. I really don't wanna do the ielts again because I reckon that was nearly best I can get or that ill get a 8 in writing and then mess up in another one and get 7. It's so frustrating having to do them all again. Bloody money racket. And if so does anybody know good books or sites that are of help for all band 8's Any feedback would b great. Must say this site has been a great help to me over the past six months or so, Cheers, Mark