Changing details on pprune mail
 

I decided to use the pprune email today and I saw that the name appearing when I send an email using that accout is wrong ( I admit I gave false data before I realised how pprune is important)
Now I like to change the name that it appears. Although I visited the profile section and made sure the name on the profile is correct when I send an email to another account the sender's detail are still wrong. How can I change it?

Rwy in Sight