Demanding Proof of Closed Account with Woolworths

I have recently found out on my Clearscore records that a Woolworths account that I had settled back in February 2020, and struggled to get a Paid Up Letter for from them and their attorneys, is STILL ACTIVE. I immediately contacted Woolworths on their Facebook page and they promised that someone would call me on 25 September 2020. I had to constantly remind them until the previous week I notified them that I would not be available telephonically. I then requested them to email me proof that they had permanently closed my account. To my surprise today, I read in their response under my comment on Facebook that, "The Financial Services team have provided correspondence via email". This is a lie, I'm with my cellphone 24/7 and they previously used my personal email on this phone with ease before. I'm sick and tired of Woolworths and I'm demanding that they send me Proof that they have permanently closed my account. I just don't have energy for their games!!!