Paper Valuation Company Reports- Getting incorrect data changed

Hi Everyone,

                           I have recently through my broker got some valuations CMA or whatever you want to cal it prior to getting a proper val conducted.

My property is located in QLD, two lots on one title, total of 1022 m2, the house is smack bang over the two lots.

On the 2 reports I have received, one from Residex and the other from APM, both have only included one lot on the report, of 495 m2. I thought a fixable mistake when I received the Residex but when I received the APM something was amiss, I contacted both and they are in the processing of changing. 

The state gov land office has my property as 1022 m2, as I have the letter to prove it, but where are these companies getting there info from? They stated to me it was from the Gov but the Gov appears to be correct. There is a problem somewhere and I need to address the mothership so to speak.

I can understand the confusion of two lots one title but doesn't always help me come valuation time etc, I just want it fixed as the little things count. How many other companies could be getting it wrong.

Thanks