I'm getting panicked about the whole secondary school application process... I'm terrified of making a mistake that will impact on my son's future.... My query is this: I live with my mum so the council tax bill is not in my name. Nor do I have any tenancy agreement because it is an informal arrangement between me and my mum. I have other proofs such as driving licence, tax credits letter - when I called Lambeth council earlier this year, they assured me this was enough. But when I check the website again it seems to me that one of the proofs has to be council tax bill or tenancy agreement! Should I get an affidavit? And if so, how?? I googled it but it all seems a bit vague. Has anyone been in this situation who can advise me...please?