I actually work for an insurance company, what do your terms and conditions say, you might find that if exact matching parts are unavailable then the next closest match will be used, maybe dji don't make gold ones anymore, maybe there's a world stock shortage of gold stickers so rather than hold up your warranty claim and delivery they supplied you with 2 sets of the next best stickers which according to you dji say they aren't obliged to
I have another issue with a P2V that was sent to DJI for warranty work so I've looked at the warranty wording many times. It's _extremely_ vague (which you know who this favors... it's also a contract of adhesion). It really only states that they will repair or replace it.
Since DJI is still selling the P3 I think it's safe to assume that they still have stickers. Also, they are still repairing them under warranty so they _should_ have stock on hand.
I can understand your last few comments. I have no issue with gold ones not being included. If DJI would rather wait to see if a person complained, fine (not the best way to handle it... but fine). But if a person calls them on the replacement and wants what they sent in, I'd expect DJI to submit a request and send out some of the same stickers. No harm, no foul. In this case they try to lie about what is covered and then simply refuse to replace them.