"I have not received the previous email prior to today. Sorry for the mix up but that is what happe ... " (more)ned on my end as to why i did not answer back. "
"I appologize I did not receive the email. I would have responded had I received the email sooner. ... " (more) Sorry for the mix up. I no longer have the machine but since I just got the message that you send months ago I wanted to advise that I never received the previous email. "