Worst experience with Nedbank overdraft cancelation cancelation process

I wanted to close off my overdraft facility with nedbank, I requested cancelation in Jan via the app and was advised I will be contacted with in 1 business day, only received response from Letchman Brownyn on the 30th of Jan 2:18 pm advising me to pay the owing amount on my overdraft, I the sent an email back same day @ 2:28 pm asking how much should I pay, I have not received any feedback till today. I then escalated to *** received a ref ***3 Stanley Celeste stating I need to pay amount owning on the overdraft limit, I then enquired feedback as on the 27th of January I received funds of above my overdraft limit ensuring it would be paid off and I would cancel it after. Still no feedback has need received I eventually had to call the ***Number and request closure. and I wanted to escalate the matter but was advised the is olno escalation email for Nedbank overdraft department. I encountered unnecessary charges with the worst experience in canceling it, I doubt I would ever require the facility again simply due to the experience