Q: I share my iCloud and iTunes account with my children - I bought a new phone today - my number shows as my sons and its all mixed up - how do I sort so my new phone is correct?

I share my iTunes and iCloud accounts with my kids. When I bought my new iPhone 6s today I set it up and inputted my details. In my contacts it shows a picture of my son and states that my new phone number is my son. Now I have gone into iTunes and iCloud and it is definitely me so why does his name show up and how can I change it please?

Cheers

Pe