Hi Dougi1985
I did exactly the same thing, claimed for 70 points, when I only had 65. I was assigned to the Brisbane team who I rang when I received the email saying that they were my CO. I was told they have this issue a lot and the laws are far more lenient now. Apparently you do not have just "one" CO now, the whole team deal with your case so you can speak to all of them. I was able to correct my points to 65 as they said I would of been granted a visa anyway on 60 points. My advise is to upload all relevant documents now before you are assigned a CO and speak with them once you get the email. I hope you have the same luck as me as my team of CO's where fabulous and really understanding. Good luck!