detained with a 2 year old

I was with my 2 year old today we had just come from maresol restaurant i then went to change her nappy at the food court baby change room i went about my business the my baby had a little milk vommit on the floor in the mean time i hear a constant knocking every 10 seconds i then respond and say ill be done now i then wipe the milk from the floor and the knocking continues i then come out and a cleaner i standing at the door and i tell her there i no need to rush me like that as i had to change a nappy and wipe the milk up and that there are other change rooms in the mall if people are in a hurry she then shouts at me tells that i made too long i then ask her for her name and tell her im reporting her she refuses to give her name i then ask her colleagues that were standing there what her name is but they say they dont know her shes new in the mean time she made a run for it when i was asking for her name i then i got to security and ask him to take me to mall management he then takes me to information desk i explain my story there and i was told to fill in a form then but i did not know the womans name so i went back to the security and told him i need to take a picture of that woman so i can complain to the waterfront facebook page because all staff members miraculously dont know the womans name he the tells me she probably ran to the office and took me there at hamleys then through a alley and outside to the office i then enter take a photo of her face and leave then a woman and the cleaning manager comes after me she shouts jys n ******** idiot i then proceed to take a photo of her and the manager comming after me they then want to grab me and the phone i then move out of the alley fast and into the mall and start drawing attention to me they then call security and security manager we argue in the mall the cleaning manager that came after me then grabs my phone in the mall and refuses to give it back until i go to the back office with them we get there then i explain and they all gang up on me the security manager then sides with cleaning staff because they tell him i came into the office swearing which i did not i had no issue with the people in the office i only came for my picture so i could have evidence for my complaint to v & a facebook page and then its a shouting battle between all of us in the office all this while my 2 year old is on my arm the argument then ends and their weak explanation to me is that in todays crazy world alot of things happen and we have to act fast when a male is locked in our toilets alone with a child i then tell then only sick people think that way why do i as a father have to be suspected of any ***ual acts with my daughter in waterfronts toilets i then ask if i can leave they tell me yes when i delete the photos of the staff who harrased me in the alley and the woman of the incident because i am not going to cause trouble for them i then tell them no i am not deleting anything and try to walk the the security manager then refuses me to exit the office i then ask him to phone the police if his holding me but he doesnt want to they just force me back away from the door i then ask him if hes detaining me with a 2 year old they then say call the mother i then say im alone then he says im going nowhere i then tell him fine im keeping the photos you can detain me but lets go drop my 2 year old and my phone at home first then ill gladly stay locked up he then says do i look like a ****** taxi and tells me then i must stay inside with my 2 year old the arguments go on and the security manager tells me take a photo of him and post because he wants to be famous but im not going to make trouble for the staff i am then forced to delete the photos because i can see my 2 year old is getting traumatized from the shouting and staff blocking the door for me to exit and after i delete they allow me to leave and all start laughing as i exit i am definately taking this matter further i am going to seek advice frrom any free or legal aid lawyer i can find to see what my option are against v & a waterfront because im sure it is ******* to detain a 2 year old.......please review your cctv footage especially at that alleyway that leads to the outside yard where the office is thats where they came after me after i took the photo of the first one and then took their photos too