I already haveea have a 4 line family plan can get a phone and add a 5th line

[Android Central Question]

I'm already on a 4 line family plan however l want to buy my daughter a phone can l buy the phone from MetroPCS then add her line to my existing acct.
Please let me know.
Thank you.

 

[B. Diddy]

I moved this to the Metro forum for more specific traffic.