I subscribe for the History channel and I unsubscribe right away, why I don’t see my refund back in my account
Every streaming subscription with which I am familiar, either through a third party like Roku or directly with the channel, is nonrefundable. You are pre-paying for a specified subscription period and it auto renews when that period runs out. When you cancel the subscription it prevents the auto-renewal but the subscription stays in force until the balance of the pre-paid period expires. These conditions are explained on screen and must be accepted when subscribing (you know, all that stuff you don't bother to read at the time).
Every streaming subscription with which I am familiar, either through a third party like Roku or directly with the channel, is nonrefundable. You are pre-paying for a specified subscription period and it auto renews when that period runs out. When you cancel the subscription it prevents the auto-renewal but the subscription stays in force until the balance of the pre-paid period expires. These conditions are explained on screen and must be accepted when subscribing (you know, all that stuff you don't bother to read at the time).