having read the blurb on rs.com. i'm still a little bit confused

i have a platinum code that so far remains unused. i'm think i'm right in saying that's now obsolete for the upcoming European dates ?

instead i have to choose a show from the list when it appears. but once i say i want tickets for that show i get a code and that's it. if i don't like the seats offered i'm screwed as the code wont work with any other show

is that correct ? if so it sucks. i prefered the other way

its doing my fruit in (

You are correct! You can only use it ONCE.
I do not know if you can play with the seating. But mostly in Europe you can't choose the seats except for the countries which have ticketmaster.
Germany is depending on the venue very bad in that.