Child Support - Am I Doing The Right Thing?

[rogerab]

Hope someone can advise on the following please...

My daughter is 17 and I've been paying child support since day one. Her mother and I made a private arrangement a few years ago due to the incompetence of the CSA.
In December last year, my daughter was kicked out by her mother and went to live with her grandparents. I was asked to pay my child support directly to my daughter which I have done since then.
I have found out that my daughter has now moved in with her boyfriend. She is still at college.

A few questions:
1) If there is now no PWC (parent with care) and my daughter is effectively looking after herself, does this change anything regarding paying / the amount / the law?
2) Should her mother now be contributing too?
3) Anything else I need to be aware of?

Many thanks in advance.

[Buenchico]

This might be relevant:
https://www.gov.uk/when-child-maintenance-payments-stop