I have just ported my phone no. over and the phone calls are fine. If I ring my mobile my ported no. works.
However if I send an imessage it comes through to the recipent as the original giffgaff no.
Any ideas please.
you probably had your imessage app registered with the old number. you'll need to have this changed. read this https://discussions.apple.com/thread/3404451?start=0&tstart=0
OK, have fixed this. Thought it good for others to know the answer.
Settings > Phone > My Number
Just changed no. to my ported no. All OK now.
Cheers for everyones advice.
Cool, pleased your sorted!
it could take up to 24 hours
1) settings>messages>turn off imessage
2) settings>phone>change your number to the correct one
3) restart phone
4) Turn iMessage back on and wait for activation
Pete please mark the thread as closed/solved.