I've just had a fairly decent amount of money paid into my bank account by HMRC. The letter I've received says they've been informed by DWP that I'm in receipt of DLA for my child and on that basis, am entitled to the disability element of tax credits. The money they've paid is for 2016-2017. Has this happened to anyone else? If they've only just become aware that my son has a disability, do they not 'owe' money from 2017- now? I'm aware i sound really greedy but I'm confused.