вам помогли

helped you

→ вы
phrase Rare #43,327
helped you «Вам» is the polite singular or plural form of “you.” The subject is often understood from context.
RU: Вам помогли с чемоданами?
EN: Did they help you with your bags?

Они вам помогли?

Did they help you?

И людей, которые вам помогли.

And the people who helped you.

— Таксист (2017)

Ты бы хотел, чтобы они вам помогли?

Would you like them to help you?