"I'm so sorry about not getting you ... " (more)r item shipped out; I fell ill and was unable to get to the post. My utmost apologies, this is not how I like to do business. "
"I am so sorry I was unable to ship out ... " (more) your item; I fell ill and was unable to get to the post. My utmost apologies to you, this is not how I like to do business. "