Fission mailed giffgaff

It seems like you're trying to say that Fission has sent an email to Giffgaff!

Just to clarify, Fission is a term that refers to the process of an atomic nucleus splitting into two or more smaller nuclei, releasing a large amount of energy in the process. Giffgaff, on the other hand, is a mobile virtual network operator (MVNO) that provides mobile phone services in the United Kingdom.

If you're trying to ask about an email being sent from Fission to Giffgaff, I'd be happy to help you with that! Could you please provide more context or clarify what you're trying to ask?