When I sent in my affidavits, I made certain my supportive evidence was included. For example, in my affidavit, the letter states my aunt leased the apartment with her name so she would check we paid the rent on time in a monthly bases. Her name was indeed in the contract and the census record I sent had her as head of household. Make certain citizens or residents write the word "continously" alot and that they knew you as a tenant in the specific adress where you lived.