请教8老师 751 RFE

My NOA was 10/19/2015....and as the date of 04/28/2016.(after 6 months of waiting..).I got a Request for Evidence Notice.

There are something going on with my application...First of all, I have two NOA receipts numbers(both start with WAC)...I constantly check both receipts case status online. One showing as 'case received' while the one as 'My Case Status does not recognize the receipt number entered.....' the RFE notice only reflect one of them, which is the one CAN NOT be tracked online!!!! Now I'm totally confused which number attached to my application...

The content of this RFE is 'you have not established that the marriage upon which you were granted conditional status was entered into in good faith'. I have given all I have to show evidence the truth of my marriage.I attached the two years W2, the HUD letter and mortgage(house), same address for 2 years after temporary GC, car insurance, joint credit card statements, same telephone bills, pics and many others. The only thing we do not have are 1. child 2. joint debt account. 

At this point what shall I do...Many thanks! I really appreciate it!

谢谢 8老师 谢谢皮匠老师！！