I dont think that will suffice? they asked for a letter and proof of rent? so the question is what REASON could i ask my agent why i suddenly need proof or rent and when i moved in OTHER than for housing benefit?

HI I moved to a private flat-share around a few months ago. The agent at the time didn't want to give me a full tenancy agreement. I wasn't really fussed as i was working and paid my rent on time. Unfortunately I recently lost my job and have been forced to claim esa. The landlord does not usually accept people in full time employment and i have no intention of risking my accommodation . I need proof of address as i am allowed by law to apply for housing benefit and i am under no obligation to tell him i am unemployed anyway, BUT i need proof of tenancy What possible reason can i give him to ask for proof of tenancy? I have also been told by housing benefit that i do not actually need a tenancy agreement just proof of residency etc. SO i assume for housing benefit just a letter stating when i moved in and how much rent i pay and what room i live in etc Can someone offer me some advice? Im only staying here for four months and I'm recovering from an illness i have no option but to stay here at the moment. What reason can i say that i need proof of tenancy other than for housing benefit? thanks