Why my referal mails are not going to the person concerned

@psmohan (1882)
India
October 5, 2006 3:45am CST
I referred 3 persons and the mails have not reached them so far. I tried 2 to 3 times and still not but they are keen to join. I want them to join under me. How is it possible ? Kindly advice
1 response
• India
15 Oct 06
Send your referal id to their mail ids
@psmohan (1882)
• India
15 Oct 06
Thanks and let me try