address change didnt update

i applied for an address change back in november, everything went smoothly and all, but ive just received my new concession card and it has my old address.

so decided to check my centrelink details and apparently my address never officially updated? so theyve been paying me the amount for my last address and im worried ill go into debt for their mistake.

im calling them rn but theres a 45 minute wait time and im freaking out so bad rn.