"Unfortunately, I was having some problem ... " (more)s where I was unable to send the buyers item. But, I gladly offered to refund all their credits back to them. Again, I am sorry for the inconvenience."
"Unfortunately, I was having some problem ... " (more)s where I was unable to send the buyers item. But I gladly offered to refund their credits back to them. Again I'm very sorry for the inconvenience."
"Unfortunately, I was having some problem ... " (more)s where I was unable to send the buyers item. But I gladly offered to refund their credits back to them. Again I'm very sorry for the inconvenience."