You have advertised the item with postage of 48 hour other courier - so, you now need to buy a label from the courier of your choice and drop the item off or have it collected.
The £65 the buyer has paid will be part of the payment to you so you have to arrange and buy the postage.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
