I agree with Springy. Negative and dinged stars. Too many sellers are getting away with poor service because people don't want to make a fuss. If he had a valid excuse, like illness or something else, then he could have messaged you when he sent the refund.

I too am not one for dishing out negs lightly. I have only ever given 1 neg in my life and never a neutral. There are times though where bad sellers need to be taken to task, especially if he is a repeat offender.