Change of address - how difficult can it be???

<p>I have been trying to change my address for over a month. I've done it online but the statement always comes up with the old address. I have phoned several times and have been given every excuse under the sun! They promise it will work. Some say to wait until the end of the month. Then they say to escalate it. Then it's this, then it's that! This isn't rocket science! HELP !!! </p> <p> </p> <p>All I want is an emailed statement with my new address! </p>