"so sorry about the confusion and misunders ... " (more)tanding but I have been very sick and unable to get anything done. I don't have any more to help me with the business and there are times when I can't get anything done. i will be happy to return your points"
"sorry for the misunderstanding but I have ... " (more)been very sick and was not able to send anything out. I am dealing with major medical issues and I don't have anyone to take care of my business."