Need proof of USC stay and photos together

[guru5678]

Hi,
I had my DORA interview and it was all going well, but then she said that my wife(USC) doesnt have enough bills in her name. She told her to step out and asked me some basic questions and then asked me to step out and asked same questions from my wife. When I went in she told it went fine but she needed more proof. She asked me to get some more mails that are in my wifes name and some more photos of us together. The thing is I have enough mail in my wifes name but not many photos of us together. We are still students and most photos (around 20) of us are on trips we went to together. Is that sufficient, and do I have to write some comments next to photos explaingin where they were taken when I mail the Whle package. I am also thinking of asking couple of my friends and couple of her friends to write letter stating that they know us and they we have been living together for so long.. I also asked the postman if he could help us out as we live in a house and know the guy personally ( thanks to our dog) but he refused saying the post office has instructed them not to get involved. I also asked one of my neighbours to write a letter.
Would all this be enough??

Thanks for all the help.