Woolworths are ***** and *******

I have raised a concern whereby you guys are claiming that I have an unpaid credit card with you, I don't have a credit card with you, I paid up that thing and I requested for it to be cancelled and I was informed that the account was closed and the card was destroyed in store, my I'd no is ***. I want this thing resolved as soon as possible I dont want to be harassed by lawyers for something that I don't know of and I need a formal apology, otherwise im going to engage ombudsman in this matter. If your employees didn't do their job is nom of my business. All this time on my app it showed that I don't have a credit card I must apply for one, so when did I take the credit card now and why I wasn't receiving any communication regarding the credit card.