If the seller is someone you respect, you just gotta let them know that starting a claim is in no way 'wanting' to be disrespectful. It's just you have to cover your butt. I've done it and let it drag on for a while longer hoping it comes in (in my case it did come in a week after starting a claim). And if it comes to the point where you get refunded. You can do what @Inkkoonce did and send the money back later. I just hope it moves so that both sides can be happy. Good luck to you both.