Totally exasperated and thoroughly annoyed

I am Totally frustrated and disappointed with the appalling service from Wesbank. Ihave tried to obtain the original registration papers for a vehicle that was paid in full last year. I requested a settlement quote and paid within the deadline date indicated on the quote. And I wait and wait and nothing, then I get another invoice, what this is for is anyones guess as there is no indication on the invoice what this amount is for. I pay, then I wait some more, then I get a statement indicating that I still owe the pre-resettlement account. What's with this service? Were talking two months later and I wonder if I will ever be done with paying Wesbank. I am totally fed up with doing their work for them and sending emails with settlement quotes and proof of payment to start all over again. I don't get a response to my emails just further invoices. I continue to pay insurance while I wait for my documents to sell my car for which I had a buyer for 2 months ago.