---

@*tippy*toes* wrote:

Excellent seller to sell rubies? What a tosser! I wouldn't worry about that neg. Any half normal people can see it was a complete numpty who left it. I wouldn't even entertain the idea of a refund. Stuff them!

---

Yes, I initially thought OP must be a seller of precious stones. 

Perhaps the buyer equates red dots with rubies? 

In any case, any other buyer can clearly see that this buyer is a muppet and OP's response is reasonable and professional, so no harm done.