Refund refused.

[Syncopator]

Yesterday, at 8:27pm I ordered an item.  Shortly after, I changed my mind and sent email asking to cancel the order.

Today, at 8:15am, I received a reply saying that the itrem had been despatched and they couldn't cancel. 

Firstlly, I find it difficult to believe that they actually sent the item during that period,  secondly, why are they refusing a refund?

What can I do?

[kernowlass]

@Syncopator

Personally as i was the one that ordered it then i would accept it and re-sell it myself if i no longer wanted it.

[Syncopator]

I would first like to get the correct result of a refund, but if all else fails I might consider that.