Hello Carrieanne,
You should note that this is the community forum and not intended as a venue for customer services so we would not have access to customers' accounts. Unfortunately, we would not know what was discussed when you upgraded your phone. If you wish to discuss a missing credit on your account, you would need to contact customer service. In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above.
Hope this helps 😀
Cheers
