Well my mother recently separated our lines off the one account and I payed my bill not...

Well my mother recently separated our lines off the one account and I payed my bill not knowing that there was * lines on the bill I payed. I didn't realize til after I payed it. The only line I was responsible for was **********. The other number I accidently paid for was turned off earlier in the month the phone doesn't even exist anymore and was definitely not my responsibility. I'm not trying to get a refund I was just going to see if we could upgrade my account to unlimited data. I know all of this is just a hassle and I really don't want to worry about all the disputes and stuff and I was just seeing if this is a way to remedy the situation. Please and thank you so much for helping me figure this out. I can send the confirmation of payment. My Account number is *********. Conf *********. The name on the account was originally Darinda Ranew. I believe the passcode is ********.