Incompetence to change a Physical address and send a new statement

I called Two weeks ago to update an address on my statement, I then called a week later to check and they stated that it was all correct on their side. I asked when I will be receiving an updated statement they said on Monday. Monday came and went and Tues I got a statement and GUESS WHAT? It had my OLD address on it. How hard is it to change an address and send me an updated statement??? They keep on giving me excuses that the system can only send out on the dates required, which I find hard to believe. I need an updated statement to send through to a 3rd party and I cant do it because of the incompetence of Woolworths to SIMPLY SEND ME AN UPDATED STATEMENT WITH MY CORRECT ADDRESS. Two weeks and they cant get it right. I WANT THIS RESOLVED ASAP.