I don't want my credit back on this, but I just want the person to understand what went wrong.  Wrong ISBN - was a paperback not a hardback, AND there is highlighting and writing in the book DESPITE it being against PBS guidelines AND AGAINST my requestor conditions which just remind people of PBS posting guidelines for that subject!!! hard to believe, right? 

Anyways, I can certainly use the book.  I don't want my credit back.  But i want the person to realise the errors so they are not repeated... what do I do since I hit the wrong button and marked it successfully recieved?  Should I just PM them and leave the "official" part out of it?

Thanks All!!  You guys are always great with stuff like this!

I guess I should just use comments from the transaction achive huh?  Thats closest I can find... right?

It's possible that they didn't realize what they had done.  As much as the binding type is identified several places some people just enter the ISBN and are done with it, and some ISBNs don't have the binding right (and can't really be changed).  Still, you requested one and got the other without any warning and that's a problem.  I would think that if you're hoping just to inform the sender so that they know for future reference a kindly "Hey, just wanted to let you know" PM would be sufficient to your cause.  Make sure you explain why you didn't mark it RWP and that you don't want a refund (as opposed to "I'm not looking for a refund" which is a little more open to interpretation).  I think that'd definitely accomplish your goal without raising any hackles. 

Hopefully that helps.  I'm sure others will be by to add to the discussion.  I've never had this situation happen to me and I'm sure there are quite a few who have.  They should have more insight on the matter.

Happy Swapping!

Since you marked it received w/o a problem already the only thing you can do is PM them and explain why the book shouldn't be posted.  Do it in a friendly way but pointing out that the next person might mark it RWP and ask for a credit back.  Make it sound like you are trying to prevent them future grief.

Thanks all!  I had sent them a very friendly reply, cut n paste some stuff from the help center, and I didn't ask for my credit back - I'll really needed the book and can still use it and keep it on my shelf despite the writing and the wrong binding.  My main goal was just to let them know the issues.  I guess I was mostly just surprised about the requestor conditions and the writing being against PBS guidelines!  I wouldn't have minded if they had sent me a message, as PBS guidelines state for textbooks (assuming they thought it qualified as a text).  But I'm just surprised especially with my requestor conditions marked for no highlighting/writing as per PBS guidelines that they didn't do that! 

Anyways, I sent them the note, just wanted to be sure that they know for future and so doesn't happen to someone else.   No reply yet, but we'll see =).