missing information

Ok so I've had my biometrics and everything but I just got a letter asking me for further proof that I was here in 2007.

Unfortunately that was a year where I went nowhere, had no bills on my name nor a job (dark times) and outside of my boyfriend whom I lived with at the time, theres no hard evidence beyond what I already submitted.

Thoughts?

Maybe your boyfriend can write a letter stating that you lived with him? My wife and I lived rented a room from a family and they wrote a letter stating that we lived with them, how much we payed and that we where good renters.

No bank statements?
No shopping receipts where you have some type of reward accounts? A lot of those receipts come with your first and last name.
Affidavits?

I had a hard time finding stuff for those times too (I had thrown all my bank statements/receipts since 2004 a year previous to DACA being announced), the only thing I did was getting affidavits from my boss and someone else that knew me. I had receipts but had no name on them (movie stubs).

Its a good thing you were at least active on facebook/myspace which you can use posts as proof