I've an old LCD monitor that doesn't work anymore (screen isn't cracked or anything, but it just didn't turn on anymore one day. )

Do I just bring it to your office and confirmed i'll get the RM30, or you need to see what's the problem first?

Also, do you know where to dispose of old keyboards, mouse, etc? I've a whole bunch of electronics I wanna throw but am afraid of polluting the environment even more. :/