"I'm sorry for the confusion. I sol ... " (more)d so many items and have not been able to ship them all out. I've only been able to ship a few a day. I'm sorry for the inconvenience."
"It's alright, I understand... I'l ... " (more)l be on the look out just in case and if it does get here at a later date, I'll ship it back to you since you refunded my credits. It might have been lost or sent back to you; but I'll be on the look-out. Thank you... and again, it's okay. "