Income support and maintanance?

[MissRhead]

Hi, I'm currently on income support and recently got a letter through from the jobcenter asking to confirm when I had my LO and his name ect. One of the questions however was has my babys farther paid any maintanance. I am classed as single as my OH does not live with me due to work so if I tick no will that mean CSA will be involved? And if I tick yes (it asks when and howuch) will it affect my income support? We will be setting up an arrangment in which he will put money into my account for LO, this hasn't been set up yet as well my LO is only 2 weeks old and OH is still on paternity. I'm relally struggling with what to write on the form so any advice is greatly appreciated xxx