Firstly - have you read through this thread? I've posted a youtube video from my channel (if you watch, please like/sub!) that explains how this works.
FCP - FCP Euro, the name of the company. www.fcpeuro.com
I mean, if they have parts/oil that you use, sure, you can take advantage but that may not be the case..not sure what you are looking for. See above website.
It's pretty simple - buy something. Use it. Buy a repalcement. Return the first one. Get store credit to use for your next parts. You cover return shipping. Yes, it really is for EVERYTHING (except things you use up/can't return like for instance fuel additives).