[ Cell Phones & Plans ] Open Question : Help with koodo please?

Okay, so I have this Koo-do phone, its an LG Keybo. My sister used to have a plan with koodo with it, but it got can-celled, Is there anyway to change the plan, but still reactivate the phone? It doesn't appear to have a sim card. I want to open the account again, but change the plan for myself Can I do this online? Please help (: