Child support question

My ex partner always said he would help me with bills for our daughter after we separated. To this day he hasn't gave me any money for her and tells me he will buy her whatever she needs when she goes over. The thing is that he doesn't buy her anything but probably 5 shirts in the last year. He doesn't look after anyone but himself and never has money but works everyday. And when i tell him i need the money for the dentist or things she needs for school he manipulates my daughter and tells her im trying to put him in jail. When i have never mentioned child support until now. He's a drunk and sometimes when he picks her up he's drunk and i dont know until she texts me to let me know. Every time she goes over the weekend w him, I've noticed that he's actually with her cousins and not with him. Every time he wants to take her on vacation he asks me for money to for her to spend and of course I give it to him because i want her to have fun. My daughter thinks im the bad one and that i hate her dad and actually believes all i want is to take him to jail. But all i want is for him to take some responsibility for his daughter. This is the first weekend i dont let her go spend it with him due that 2 days ago he called her crying lying about things i never said, mind you she saw the messages i really sent him. So she figured out he was lying and then he told her he was drunk that thats why he lied. I dont want her to stop seeing her dad but he's just a bad man overall. I've come to the conclusion that 4 years of no help from this man is enough, but im worried he'll lie and say he's not working when he really is.