Two questions regarding the rear brakes single line

[CLIVERALLY]

Two quick questions

1) I found around the adjuster a rubber band- should it be there?

2) Unfortunately I cannot remember the orientation of the bar that sits below the upper spring --- this is for the N/Side on a UK car (passenger side)- not where it sits but which way round it goes. I know that side with the bit with the metal protruding goes at the back but does it go up or down and in the direction of forward travel ?
hoped to get a photo from a previous post bu they are not working. I am fine with the rest of it , just this sodding bar

thanks