So what is the procedure if you both agree on DC but the other party doesn't do it. the order arrives no problem but i spent the extra mony and time getting the DC number and they didn't should i just ignore it and give them positive feedback, give them neutral feedback or give them negative feedback?
If you actually discussed it and agreed upon using DC, I'd say that you should at least bring it up. If they don't offer to do anything about it, I'd say that neutral feedback would probably suffice; I think negative feedback is a little drastic in this case.
But, in general, if it is a minor issue, I find it best to try discussing it with the person before taking any action.