I'm familiar with your previous threads. I appreciate that you are under a great deal of stress, but you have totally lost perspective and in so doing you are making yourself look significantly less credible at a time when you need people to consider you credible.
You have every right to be angry about what happened to you and the injustice and stress of your situation, but being so defensive to the point of aggression is not going to help. Getting into arguments about "dirty parks" and unsubstantiated illnesses does not help your case.
You need people to believe you and want to help you. Kicking off about things that sound slightly deranged achieves the opposite. If you are writing messages back to this social worker in the same way you are writing on here, then you are harming your cause.
Every time you have contact you seem to also have a thread proposing to breach the order, and compared to earlier threads you sound like you are losing it frankly, so I'm not surprised you got the defensive reaction you did from your bizarre accusations about the "dirty park" illness.
I'm not saying this to be a bitch, but out of concern that you are massively sabotaging yourself and therefore your daughter right now. You might not want to hear that, but you do need to hear it.
You need to focus on the fact that he left the contact centre with her and they are not sticking to the 30 minutes for you to leave ahead of him.
This is all that matters. Don't engage in anything else, no matter how pissed off you are or how unprofessional you think someone is.