Ok, so I recently installed Whatsapp for my father to users a Samsung Duos phone, however used my number and now all of my contacts show up. I tried changing the number to my father's but the contacts remained. I then deleted my account and tried again, with my father's number however it would automatically register with all of my contacts included. Can anyone help me with this, I'm feeling extremely stressed out at the moment and would be so, so grateful if someone helped me with this, I've been trying various methods and they all don't seem to work. Please let me know if this doesn't belong here, I'm new and a little lost haha.