How to register for one UI 4.0 beta program in f62 trough members app give suggesttion

When Samsung f62 will get a new update waiting from last 2 months

I facing and getting same error in samsung f62 mobile app is also crashing 

1 no security update from last two months 2 camera application always closing3 less camera quality in night mode4 sometimes facing heating problem5 battery is not coming much longer in normal use also6 no prepaid recharge option in samsung pay7 many ...

I using samsung pay amount cut from my account but not transaction not completedHow I get my money back