8 year old step daughter wetting seff never use to?

hi my 8 year old stepdaughter keeps wetting and soiling her pants she doesnt even relise she is doing this she has to be told she has done it she also is wetting bed every night as her mother treats her as a yoyo we dont see her much she never use to be like this with bed wetting or pants wetting but it seems to be getting worst we dont know what to do as it is getting bad we have been told stuff that isnt good that is happening at home but where do we go from here?