I’m not sure my kid try out 1 month free app or not but when they went on their ipad their was no subscription help I’m confused

I don’t know if then subscription of Sumle is on my IPhone 6 which is broken and cannot work or if this is an error because I go to my setting and press subscriptions and their nothing their about any one month payment ab-it Sumle vip because I never did any vip on Sumle so I’m confused.......help I dont know what’s going on!?