Anyone received "are you single' letter from tax credit

[brighton2016]

Received a letter from tax credits asking if my claim is correct, should I be claiming as single. It says if claim is correct don't do anything, so I am not. It lists things they class as single, one being married, which I am as not divorced yet but moved back in with my parents.

I've seen quite a lot of threads on here about these letters

I think they do just sent batches out but it is different to what I have been told over the phone

Its pretty standard around this time of year on the lead up to the new tax year/renewals. Just ignore it.