Poor customer service from Woolworths

I am very disappointed in the poor customer service that I have recieved from Woolworths customer service.I closee my account with them on the 24 July and the requested a closure letter as proof that my account is now closed..On the 25th July I went to the Gateway branch and they called customer service who assured me that the account was closed and my letter will take 7 business days ro be emailed to me. I updated my email addresses with them.I went back after 1 week and called the call centre the rude agent that i spoke to advised me its only been 6 days i will have to wait ubtil the next day.Its now the 17th August. I went to Gateway again today and called the call centre the lady that helped said that she sees my account is closed but is not sure why a closed up letter has not been generated even though she can see on system that I called on the 25th July. I also advised her that on ITC my account is reflecting as opened..she advised to hold and she will check..I was too long on hold so i asked her to please call me back after she emails me the letter. Its now been 5 hours and I am yet to get my call. Im not sure how many more calls i need to make just to get a confirmation letter that my account is closed.I AM GLAD THAT I NO LONGER HAVE TO DEAL WITH WOOLWORTHS as their customer service is the worst I have ever seen so far.