over 18 PBS dependent extension while main applicant has ILR

Hi,
I'm currently holding PBS dependent (child) visaand my extension is due in a few months.The main applicant holds ILR while I'm still on the PBS dependent route and I have completed 4 years on this PBS dependent route. When I got my second extension on PBS dependent I was 18 and now I'm 20.
I would like these queries to be answered please.
1) I believe i have to apply for extension as PBS dependent. Please confirm this if it is true.
2) Which application do I have to fill in ?
3) Which documents I have to provide to support my application?


i would really appreciate if you provide the info about the above queries.

thanks

Did the main PBS holder get ILR via the 5-year route?
What's the status of your other parent?

yes, the main PBS holder got the ILR via the 5-year route. While the other parent is on settlement route.

Thanks

Why is the other parent on the settlement route and not the PBS dependant route? Why are you two on different routes?

I think you are still under 319H and 319J.

You may qualify for ILR when your other parent qualifies for ILR.