Misapplied Payment

My web account had two service addresses listed. One was my old address (aunt lives here) and the other was my current address. She is listed as the manager on the account. 

Today my internet service was interrupted as I hadn’t paid. I logged in & paid the balance I saw, but realized afterwards it was the wrong service address. 

My address is no longer on the app even though I didn’t remove it and used to manage service through it. Customer service is refusing to transfer the funds to the correct account. 

My account used to pop up as soon as I logged in. Last time I logged in was last month. Can someone help get this transferred to correct account or at least get the payment stopped since it was made in error?