Terrible experience with Std bank consultants

I have been religiously paying my revolving loan without default since 2012. despite Covid having affected me, I continued to pay without fail as it was my obligation to do so. In the beginning of this year I realised that its been 5 years without revolving and actually this account should be close by now since it has reached its expiry term. To my surprise when I started to query that I was told that each time I would ask the bank to take back what I have already paid, that action is equivalent to revolving and kicks a new contract of 5 years. I argued to say at no stay I was explained that doing so will lock me to another 5 year contract, the consultants when you ask the purpose of the papers you are required to sign, they will say its a proof that you were at the brach requesting us to take back what's available to you. I am still arguing to say there is no pain person who can continue to ask the bank to revolve back the available funds knowing very well that, that action will result in another 5 year term. It has been a series of back and forth exercise but when I request a detail statement that will show me what derived my monthly premiums and interests to see why my loan was not at the paid up status at the end of 2020 November. Mpho Khumalo came back with the final verdict to say I must just believe that everything was calculated accordingly and there will be no documents will be provided to me to peruse. I am very much aggrieved by this action and therefore I need to escalate this matter.