How does the HO contact you?

[Saint]

It might seem trivial but how does HO normally contact you in case they need something from you or once they make a decision etc?

Is it only through post or do they also use e-mail by any chance? (It does matter especially if you're living in a country with a bad public postal service.)

[Alagomeji]

Hello Saint,
My caseworker contacted me through email.