Pathetic service from Nedbank

I requested a paid up letter from Nedbank Credit Card Division, as I had settled my credit card balance in full. I was given the run around for an entire week, being sent from pillar to post. I even contacted them via Facebook messager and received a message that my case has been escalated to management, but still no letter has been forthcoming. I desperately needed the letter to finalize the purchase of a vehicle, therefore it was extremely urgent. I was promised by Courtney on Monday and Lee on Tuesday that I would get the letter by Wednesday morning. It is now Friday. Still no letter. I have been a loyal client of Nedbank for many years. However, they obviously don't care and are not helpful at all. Really pathetic service from this bank, which I will never do business with again.