Audi financial services

I have sold my Audi and paid the amount for my car papers It's been a week and no response from them. I need my car papers to sell me vehicle. As soon as a company must supply a customer with papers , they take their time but as soon as they need a payment from you ..it's urgent. I have not missed one installment, as it's a debit order I recently paid up my car balance All I need are my papers in order to sell my car Pathetic service