You will have to contact them either by visitation or through the mail. We would be happy to let you use our letter service, simply write an email request to: Aid@InmateAid.com and tell us you need a coupon to notify your inmate of the new telephone number to call you on.
https://www.inmateaid.com/ask-the-inmate/how-do-i-let-a-prisoner-know-i-put-phone-time-through-inmateaid#answer
Accepted Answer Date Created: March 10,2015