buyer "changed their mind" do I have to pay return shipping?

[sitonmycar]

I shipped an item Nov 13. Nov 15 I am notified that the buyer "changed their mind". The item was brand, accurately described,  new, factory sealed retail packaging.  The buyer had barely had time to open the box and I get a refund request. Only explanation is "changed my mind".  Do I . have to pay return shipping?

[lady_madonna]

According to your returns policy: 30 days returns. Buyer pays for return shipping.