"Thank you for bidding on my auction. I feel real bad for not being able to ship to you right away. ... " (more)I ran into a little of financial issues, and just didn't have it. I hope you enjoy."
"I didn't have the money for shipping and so it took a little longer than I expected. But I did ... " (more)pay for the shipping and it is on its way. So just keep it, because I paid ten dollars for shipping and cannot refund it and it is on its way."