Bringing my child

Hi this ma Page .. I have a poor English. .. I’m permanent residents .. I really need advice . I want to bring my child here his 22 years of age now .whats should I do .. also I didn’t put him in my visa cus different father to my legal x husband . What should I do now.. my husband here gonna fill up the form then we gonna send to Philippines so my mom can lodge it cus my mom gonna pay the cost of visa . My husband won’t help me to pay it .. so I ask my mom to help me for paying visa..pleae can anyone advice me I really want nexmoth lodge his visa ..please please I need help .. thank and have a good day.. I wish Australian furom will reply soon..